Object tracking integration

This commits merges object tracking implementation from tomato branch.

Summarized changes from branch:

- Added list of objects to be tracked. Default there's only one object called
  "Camera" which is used for solving camera motion. Other objects can be added
  and each of them will have it;s own list of tracks. Only one object can be used
  for camera solving at this moment.
- Added new constraint called "Object Tracking" which makes oriented object be
  moving in the save way as solved object motion.
- Scene orientation tools can be used for orienting object to bundles.
- Object has got scale to define "depth" in camera space.
- All tools which works with list of tracks or reconstruction data now
  gets that lists from active editing object.
- All objects and their tracking data are available via python api.
- Improvements in witness cameras workflow,

release/scripts/presets/tracking_track_color/object.py

@@ -0,0 +1,5 @@
+import bpy
+track = bpy.context.edit_movieclip.tracking.tracks.active
+
+track.color = (1.0, 0.0, 1.0)
+track.use_custom_color = True

release/scripts/startup/bl_ui/properties_object_constraint.py

@@ -755,7 +755,16 @@ class ConstraintButtonsPanel():
         col = layout.column()
         col.prop(con, "rotation_range", text="Pivot When")
 
+    @staticmethod
+    def _getConstraintClip(context, con):
+        if not con.use_active_clip:
+            return con.clip
+        else:
+            return context.scene.active_clip
+
     def FOLLOW_TRACK(self, context, layout, con):
+        clip = self._getConstraintClip(context, con)
+
         row = layout.row()
         row.prop(con, "use_active_clip")
         row.prop(con, "use_3d_position")
@@ -763,7 +772,11 @@ class ConstraintButtonsPanel():
         if not con.use_active_clip:
             layout.prop(con, "clip")
 
-        layout.prop(con, "track")
+        if clip:
+            layout.prop_search(con, "object", clip.tracking, "objects", icon='OBJECT_DATA')
+            layout.prop_search(con, "track", clip.tracking, "tracks", icon='ANIMATION_DATA')
+
+        layout.prop(con, "camera")
 
         layout.operator("clip.constraint_to_fcurve")
 
@@ -775,6 +788,26 @@ class ConstraintButtonsPanel():
 
         layout.operator("clip.constraint_to_fcurve")
 
+    def OBJECT_SOLVER(self, context, layout, con):
+        scene = context.scene
+        clip = self._getConstraintClip(context, con)
+
+        layout.prop(con, "use_active_clip")
+
+        if not con.use_active_clip:
+            layout.prop(con, "clip")
+
+        if clip:
+            layout.prop_search(con, "object", clip.tracking, "objects", icon='OBJECT_DATA')
+
+        layout.prop(con, "camera")
+
+        row = layout.row()
+        row.operator("constraint.objectsolver_set_inverse")
+        row.operator("constraint.objectsolver_clear_inverse")
+
+        layout.operator("clip.constraint_to_fcurve")
+
     def SCRIPT(self, context, layout, con):
         layout.label("Blender 2.5 has no py-constraints")
 

release/scripts/startup/bl_ui/space_clip.py

@@ -70,7 +70,13 @@ class CLIP_HT_header(Header):
         row.template_ID(sc, "clip", open='clip.open')
 
         if clip:
-            r = clip.tracking.reconstruction
+            tracking = clip.tracking
+            active = tracking.objects.active
+
+            if active and not active.is_camera:
+                r = active.reconstruction
+            else:
+                r = tracking.reconstruction
 
             if r.is_valid:
                 layout.label(text="Average solve error: %.4f" %
@@ -197,10 +203,18 @@ class CLIP_PT_tools_solve(Panel):
     def draw(self, context):
         layout = self.layout
         clip = context.space_data.clip
-        settings = clip.tracking.settings
+        tracking = clip.tracking
+        settings = tracking.settings
+        tracking_object = tracking.objects.active
 
         col = layout.column(align=True)
-        col.operator("clip.solve_camera", text="Camera Motion")
+
+        if tracking_object.is_camera:
+            solve_text = "Camera Motion"
+        else:
+            solve_text = "Object Motion"
+
+        col.operator("clip.solve_camera", text=solve_text)
         col.operator("clip.clear_solution")
 
         col = layout.column(align=True)
@@ -208,6 +222,7 @@ class CLIP_PT_tools_solve(Panel):
         col.prop(settings, "keyframe_b")
 
         col = layout.column(align=True)
+        col.active = tracking_object.is_camera
         col.label(text="Refine:")
         col.prop(settings, "refine_intrinsics", text="")
 
@@ -287,6 +302,39 @@ class CLIP_PT_tools_orientation(Panel):
         col.prop(settings, "distance")
 
 
+class CLIP_PT_tools_object(Panel):
+    bl_space_type = 'CLIP_EDITOR'
+    bl_region_type = 'TOOLS'
+    bl_label = "Object"
+
+    @classmethod
+    def poll(cls, context):
+        sc = context.space_data
+        clip = sc.clip
+
+        if clip and sc.mode == 'RECONSTRUCTION':
+            tracking_object = clip.tracking.objects.active
+            return not tracking_object.is_camera
+
+        return False
+
+    def draw(self, context):
+        sc = context.space_data
+        clip = sc.clip
+        layout = self.layout
+        tracking_object = clip.tracking.objects.active
+        settings = sc.clip.tracking.settings
+
+        col = layout.column()
+
+        col.prop(tracking_object, "scale")
+
+        col.separator()
+
+        col.operator("clip.set_solution_scale", text="Set Scale")
+        col.prop(settings, "object_distance")
+
+
 class CLIP_PT_tools_grease_pencil(Panel):
     bl_space_type = 'CLIP_EDITOR'
     bl_region_type = 'TOOLS'
@@ -316,6 +364,37 @@ class CLIP_PT_tools_grease_pencil(Panel):
         row.prop(context.tool_settings, "use_grease_pencil_sessions")
 
 
+class CLIP_PT_objects(Panel):
+    bl_space_type = 'CLIP_EDITOR'
+    bl_region_type = 'UI'
+    bl_label = "Objects"
+    bl_options = {'DEFAULT_CLOSED'}
+
+    @classmethod
+    def poll(cls, context):
+        sc = context.space_data
+
+        return sc.clip
+
+    def draw(self, context):
+        layout = self.layout
+        sc = context.space_data
+        clip = context.space_data.clip
+        tracking = clip.tracking
+
+        row = layout.row()
+        row.template_list(tracking, "objects", tracking, "active_object_index", rows=3)
+
+        sub = row.column(align=True)
+
+        sub.operator("clip.tracking_object_new", icon='ZOOMIN', text="")
+        sub.operator("clip.tracking_object_remove", icon='ZOOMOUT', text="")
+
+        active = tracking.objects.active
+        if active:
+            layout.prop(active, "name")
+
+
 class CLIP_PT_track(Panel):
     bl_space_type = 'CLIP_EDITOR'
     bl_region_type = 'UI'
@@ -428,7 +507,7 @@ class CLIP_PT_tracking_camera(Panel):
         col.operator("clip.set_center_principal", text="Center")
 
         col = layout.column(align=True)
-        col.label(text="Undistortion:")
+        col.label(text="Lens Distortion:")
         col.prop(clip.tracking.camera, "k1")
         col.prop(clip.tracking.camera, "k2")
         col.prop(clip.tracking.camera, "k3")

source/blender/blenkernel/BKE_tracking.h

@@ -34,11 +34,13 @@
 
 struct bGPDlayer;
 struct ImBuf;
+struct ListBase;
 struct MovieReconstructContext;
 struct MovieTrackingTrack;
 struct MovieTrackingMarker;
 struct MovieTracking;
 struct MovieTrackingContext;
+struct MovieTrackingObject;
 struct MovieClipUser;
 struct MovieDistortion;
 struct Camera;
@@ -49,8 +51,8 @@ void BKE_tracking_init_settings(struct MovieTracking *tracking);
 void BKE_tracking_clamp_track(struct MovieTrackingTrack *track, int event);
 void BKE_tracking_track_flag(struct MovieTrackingTrack *track, int area, int flag, int clear);
 
-struct MovieTrackingTrack *BKE_tracking_add_track(struct MovieTracking *tracking, float x, float y,
+struct MovieTrackingTrack *BKE_tracking_add_track(struct MovieTracking *tracking, struct ListBase *tracksbase,
-			int framenr, int width, int height);
+			float x, float y, int framenr, int width, int height);
 void BKE_tracking_insert_marker(struct MovieTrackingTrack *track, struct MovieTrackingMarker *marker);
 void BKE_tracking_delete_marker(struct MovieTrackingTrack *track, int framenr);
 
@@ -72,16 +74,27 @@ struct ImBuf *BKE_tracking_get_pattern_imbuf(struct ImBuf *ibuf, struct MovieTra
 struct ImBuf *BKE_tracking_get_search_imbuf(struct ImBuf *ibuf, struct MovieTrackingTrack *track,
 			struct MovieTrackingMarker *marker, int margin, int anchored, float pos[2], int origin[2]);
 
-void BKE_track_unique_name(struct MovieTracking *tracking, struct MovieTrackingTrack *track);
+void BKE_track_unique_name(struct ListBase *tracksbase, struct MovieTrackingTrack *track);
 
-struct MovieTrackingTrack *BKE_tracking_named_track(struct MovieTracking *tracking, const char *name);
+struct MovieTrackingTrack *BKE_tracking_named_track(struct MovieTracking *tracking, struct MovieTrackingObject *object, const char *name);
-struct MovieTrackingTrack *BKE_tracking_indexed_track(struct MovieTracking *tracking, int tracknr);
+struct MovieTrackingTrack *BKE_tracking_indexed_track(struct MovieTracking *tracking, int tracknr, struct ListBase **tracksbase_r);
 
 void BKE_tracking_camera_shift(struct MovieTracking *tracking, int winx, int winy, float *shiftx, float *shifty);
 void BKE_tracking_camera_to_blender(struct MovieTracking *tracking, struct Scene *scene, struct Camera *camera, int width, int height);
 
 void BKE_get_tracking_mat(struct Scene *scene, struct Object *ob, float mat[4][4]);
-void BKE_tracking_projection_matrix(struct MovieTracking *tracking, int framenr, int winx, int winy, float mat[4][4]);
+void BKE_tracking_projection_matrix(struct MovieTracking *tracking, struct MovieTrackingObject *object,
+			int framenr, int winx, int winy, float mat[4][4]);
+
+struct ListBase *BKE_tracking_get_tracks(struct MovieTracking *tracking);
+struct MovieTrackingReconstruction *BKE_tracking_get_reconstruction(struct MovieTracking *tracking);
+
+struct MovieTrackingTrack *BKE_tracking_active_track(struct MovieTracking *tracking);
+struct MovieTrackingObject *BKE_tracking_active_object(struct MovieTracking *tracking);
+struct MovieTrackingObject *BKE_tracking_get_camera_object(struct MovieTracking *tracking);
+struct ListBase *BKE_tracking_object_tracks(struct MovieTracking *tracking, struct MovieTrackingObject *object);
+struct MovieTrackingReconstruction *BKE_tracking_object_reconstruction(struct MovieTracking *tracking,
+			struct MovieTrackingObject *object);
 
 /* 2D tracking */
 struct MovieTrackingContext *BKE_tracking_context_new(struct MovieClip *clip, struct MovieClipUser *user,
@@ -92,20 +105,23 @@ void BKE_tracking_sync_user(struct MovieClipUser *user, struct MovieTrackingCont
 int BKE_tracking_next(struct MovieTrackingContext *context);
 
 /* Camera solving */
-int BKE_tracking_can_reconstruct(struct MovieTracking *tracking, char *error_msg, int error_size);
+int BKE_tracking_can_reconstruct(struct MovieTracking *tracking, struct MovieTrackingObject *object,
+			char *error_msg, int error_size);
 
 struct MovieReconstructContext* BKE_tracking_reconstruction_context_new(struct MovieTracking *tracking,
-			int keyframe1, int keyframe2, int width, int height);
+			struct MovieTrackingObject *object, int keyframe1, int keyframe2, int width, int height);
 void BKE_tracking_reconstruction_context_free(struct MovieReconstructContext *context);
 void BKE_tracking_solve_reconstruction(struct MovieReconstructContext *context,
 			short *stop, short *do_update, float *progress, char *stats_message, int message_size);
 int BKE_tracking_finish_reconstruction(struct MovieReconstructContext *context, struct MovieTracking *tracking);
 
-struct MovieReconstructedCamera *BKE_tracking_get_reconstructed_camera(struct MovieTracking *tracking, int framenr);
+struct MovieReconstructedCamera *BKE_tracking_get_reconstructed_camera(struct MovieTracking *tracking,
-void BKE_tracking_get_interpolated_camera(struct MovieTracking *tracking, int framenr, float mat[4][4]);
+			struct MovieTrackingObject *object, int framenr);
+void BKE_tracking_get_interpolated_camera(struct MovieTracking *tracking,
+			struct MovieTrackingObject *object, int framenr, float mat[4][4]);
 
 /* Feature detection */
-void BKE_tracking_detect_fast(struct MovieTracking *tracking, struct ImBuf *imbuf,
+void BKE_tracking_detect_fast(struct MovieTracking *tracking, struct ListBase *tracksbase, struct ImBuf *imbuf,
 			int framenr, int margin, int min_trackness, int min_distance, struct bGPDlayer *layer,
 			int place_outside_layer);
 
@@ -127,8 +143,14 @@ void BKE_tracking_distortion_destroy(struct MovieDistortion *distortion);
 struct ImBuf *BKE_tracking_undistort(struct MovieTracking *tracking, struct ImBuf *ibuf, int width, int height, float overscan);
 struct ImBuf *BKE_tracking_distort(struct MovieTracking *tracking, struct ImBuf *ibuf, int width, int height, float overscan);
 
+/* Object tracking */
+struct MovieTrackingObject *BKE_tracking_new_object(struct MovieTracking *tracking, const char *name);
+void BKE_tracking_remove_object(struct MovieTracking *tracking, struct MovieTrackingObject *object);
+void BKE_tracking_object_unique_name(struct MovieTracking *tracking, struct MovieTrackingObject *object);
+struct MovieTrackingObject *BKE_tracking_named_object(struct MovieTracking *tracking, const char *name);
+
 /* Select */
-void BKE_tracking_select_track(struct MovieTracking *tracking, struct MovieTrackingTrack *track, int area, int extend);
+void BKE_tracking_select_track(struct ListBase *tracksbase, struct MovieTrackingTrack *track, int area, int extend);
 void BKE_tracking_deselect_track(struct MovieTrackingTrack *track, int area);
 
 #define TRACK_SELECTED(track)				((((track)->flag&TRACK_HIDDEN)==0) && ((track)->flag&SELECT || (track)->pat_flag&SELECT || (track)->search_flag&SELECT))

source/blender/blenkernel/intern/constraint.c

@@ -825,7 +825,7 @@ static void childof_evaluate (bConstraint *con, bConstraintOb *cob, ListBase *ta
 {
 	bChildOfConstraint *data= con->data;
 	bConstraintTarget *ct= targets->first;
-	
+
 	/* only evaluate if there is a target */
 	if (VALID_CONS_TARGET(ct)) {
 		float parmat[4][4];
@@ -3949,6 +3949,7 @@ static void followtrack_id_looper (bConstraint *con, ConstraintIDFunc func, void
 	bFollowTrackConstraint *data= con->data;
 	
 	func(con, (ID**)&data->clip, userdata);
+	func(con, (ID**)&data->camera, userdata);
 }
 
 static void followtrack_evaluate (bConstraint *con, bConstraintOb *cob, ListBase *UNUSED(targets))
@@ -3956,105 +3957,126 @@ static void followtrack_evaluate (bConstraint *con, bConstraintOb *cob, ListBase
 	Scene *scene= cob->scene;
 	bFollowTrackConstraint *data= con->data;
 	MovieClip *clip= data->clip;
+	MovieTracking *tracking;
 	MovieTrackingTrack *track;
-	
+	MovieTrackingObject *tracking_object;
+	Object *camob= data->camera ? data->camera : scene->camera;
+
 	if (data->flag & FOLLOWTRACK_ACTIVECLIP)
 		clip= scene->clip;
-	
+
-	if (!clip || !data->track[0])
+	if (!clip || !data->track[0] || !camob)
 		return;
-	
+
-	track= BKE_tracking_named_track(&clip->tracking, data->track);
+	tracking= &clip->tracking;
-	
+
+	if(data->object[0])
+		tracking_object= BKE_tracking_named_object(tracking, data->object);
+	else
+		tracking_object= BKE_tracking_get_camera_object(tracking);
+
+	if(!tracking_object)
+		return;
+
+	track= BKE_tracking_named_track(tracking, tracking_object, data->track);
+
 	if (!track)
 		return;
-	
+
 	if (data->flag & FOLLOWTRACK_USE_3D_POSITION) {
 		if (track->flag & TRACK_HAS_BUNDLE) {
-			float pos[3], mat[4][4], obmat[4][4];
+			MovieTracking *tracking= &clip->tracking;
-			
+			float obmat[4][4], mat[4][4];
+
 			copy_m4_m4(obmat, cob->matrix);
-			
+
-			BKE_get_tracking_mat(cob->scene, NULL, mat);
+			if((tracking_object->flag&TRACKING_OBJECT_CAMERA)==0) {
-			mul_v3_m4v3(pos, mat, track->bundle_pos);
+				float imat[4][4];
-			
+
-			cob->matrix[3][0] += pos[0];
+				copy_m4_m4(mat, camob->obmat);
-			cob->matrix[3][1] += pos[1];
+
-			cob->matrix[3][2] += pos[2];
+				BKE_tracking_get_interpolated_camera(tracking, tracking_object, scene->r.cfra, imat);
+				invert_m4(imat);
+
+				mul_serie_m4(cob->matrix, obmat, mat, imat, NULL, NULL, NULL, NULL, NULL);
+				translate_m4(cob->matrix, track->bundle_pos[0], track->bundle_pos[1], track->bundle_pos[2]);
+			}
+			else {
+				BKE_get_tracking_mat(cob->scene, camob, mat);
+
+				mult_m4_m4m4(cob->matrix, obmat, mat);
+				translate_m4(cob->matrix, track->bundle_pos[0], track->bundle_pos[1], track->bundle_pos[2]);
+			}
 		}
 	} 
 	else {
-		Object *camob= cob->scene->camera;
+		MovieClipUser user;
-		
+		MovieTrackingMarker *marker;
-		if (camob) {
+		float vec[3], disp[3], axis[3], mat[4][4];
-			MovieClipUser user;
+		float aspect= (scene->r.xsch*scene->r.xasp) / (scene->r.ysch*scene->r.yasp);
-			MovieTrackingMarker *marker;
+		float len, d;
-			float vec[3], disp[3], axis[3], mat[4][4];
-			float aspect= (scene->r.xsch*scene->r.xasp) / (scene->r.ysch*scene->r.yasp);
-			float len, d;
-			
-			where_is_object_mat(scene, camob, mat);
-			
-			/* camera axis */
-			vec[0]= 0.0f;
-			vec[1]= 0.0f;
-			vec[2]= 1.0f;
-			mul_v3_m4v3(axis, mat, vec);
-			
-			/* distance to projection plane */
-			copy_v3_v3(vec, cob->matrix[3]);
-			sub_v3_v3(vec, mat[3]);
-			project_v3_v3v3(disp, vec, axis);
-			
-			len= len_v3(disp);
-			
-			if (len > FLT_EPSILON) {
-				CameraParams params;
-				float pos[2], rmat[4][4];
-				
-				user.framenr= scene->r.cfra;
-				marker= BKE_tracking_get_marker(track, user.framenr);
-				
-				add_v2_v2v2(pos, marker->pos, track->offset);
-				
-				camera_params_init(&params);
-				camera_params_from_object(&params, camob);
 
-				if (params.is_ortho) {
+		where_is_object_mat(scene, camob, mat);
-					vec[0]= params.ortho_scale * (pos[0]-0.5f+params.shiftx);
+
-					vec[1]= params.ortho_scale * (pos[1]-0.5f+params.shifty);
+		/* camera axis */
-					vec[2]= -len;
+		vec[0]= 0.0f;
-					
+		vec[1]= 0.0f;
-					if (aspect > 1.0f) vec[1] /= aspect;
+		vec[2]= 1.0f;
-					else vec[0] *= aspect;
+		mul_v3_m4v3(axis, mat, vec);
-					
+
-					mul_v3_m4v3(disp, camob->obmat, vec);
+		/* distance to projection plane */
-					
+		copy_v3_v3(vec, cob->matrix[3]);
-					copy_m4_m4(rmat, camob->obmat);
+		sub_v3_v3(vec, mat[3]);
-					zero_v3(rmat[3]);
+		project_v3_v3v3(disp, vec, axis);
-					mult_m4_m4m4(cob->matrix, cob->matrix, rmat);
+
-					
+		len= len_v3(disp);
-					copy_v3_v3(cob->matrix[3], disp);
+
-				}
+		if (len > FLT_EPSILON) {
-				else {
+			CameraParams params;
-					d= (len*params.sensor_x) / (2.0f*params.lens);
+			float pos[2], rmat[4][4];
-					
+
-					vec[0]= d*(2.0f*(pos[0]+params.shiftx)-1.0f);
+			user.framenr= scene->r.cfra;
-					vec[1]= d*(2.0f*(pos[1]+params.shifty)-1.0f);
+			marker= BKE_tracking_get_marker(track, user.framenr);
-					vec[2]= -len;
+
-					
+			add_v2_v2v2(pos, marker->pos, track->offset);
-					if (aspect > 1.0f) vec[1] /= aspect;
+
-					else vec[0] *= aspect;
+			camera_params_init(&params);
-					
+			camera_params_from_object(&params, camob);
-					mul_v3_m4v3(disp, camob->obmat, vec);
+
-					
+			if (params.is_ortho) {
-					/* apply camera rotation so Z-axis would be co-linear */
+				vec[0]= params.ortho_scale * (pos[0]-0.5f+params.shiftx);
-					copy_m4_m4(rmat, camob->obmat);
+				vec[1]= params.ortho_scale * (pos[1]-0.5f+params.shifty);
-					zero_v3(rmat[3]);
+				vec[2]= -len;
-					mult_m4_m4m4(cob->matrix, cob->matrix, rmat);
+
-					
+				if (aspect > 1.0f) vec[1] /= aspect;
-					copy_v3_v3(cob->matrix[3], disp);
+				else vec[0] *= aspect;
-				}
+
+				mul_v3_m4v3(disp, camob->obmat, vec);
+
+				copy_m4_m4(rmat, camob->obmat);
+				zero_v3(rmat[3]);
+				mult_m4_m4m4(cob->matrix, cob->matrix, rmat);
+
+				copy_v3_v3(cob->matrix[3], disp);
+			}
+			else {
+				d= (len*params.sensor_x) / (2.0f*params.lens);
+
+				vec[0]= d*(2.0f*(pos[0]+params.shiftx)-1.0f);
+				vec[1]= d*(2.0f*(pos[1]+params.shifty)-1.0f);
+				vec[2]= -len;
+
+				if (aspect > 1.0f) vec[1] /= aspect;
+				else vec[0] *= aspect;
+
+				mul_v3_m4v3(disp, camob->obmat, vec);
+
+				/* apply camera rotation so Z-axis would be co-linear */
+				copy_m4_m4(rmat, camob->obmat);
+				zero_v3(rmat[3]);
+				mult_m4_m4m4(cob->matrix, cob->matrix, rmat);
+
+				copy_v3_v3(cob->matrix[3], disp);
 			}
 		}
 	}
@@ -4098,16 +4120,19 @@ static void camerasolver_evaluate (bConstraint *con, bConstraintOb *cob, ListBas
 	Scene *scene= cob->scene;
 	bCameraSolverConstraint *data= con->data;
 	MovieClip *clip= data->clip;
-	
+
 	if (data->flag & CAMERASOLVER_ACTIVECLIP)
 		clip= scene->clip;
-	
+
 	if (clip) {
 		float mat[4][4], obmat[4][4];
-		
+		MovieTracking *tracking= &clip->tracking;
-		BKE_tracking_get_interpolated_camera(&clip->tracking, scene->r.cfra, mat);
+		MovieTrackingObject *object= BKE_tracking_get_camera_object(tracking);
-		
+
+		BKE_tracking_get_interpolated_camera(tracking, object, scene->r.cfra, mat);
+
 		copy_m4_m4(obmat, cob->matrix);
+
 		mult_m4_m4m4(cob->matrix, obmat, mat);
 	}
 }
@@ -4128,6 +4153,80 @@ static bConstraintTypeInfo CTI_CAMERASOLVER = {
 	camerasolver_evaluate /* evaluate */
 };
 
+/* ----------- Object Solver ------------- */
+
+static void objectsolver_new_data (void *cdata)
+{
+	bObjectSolverConstraint *data= (bObjectSolverConstraint *)cdata;
+
+	data->clip = NULL;
+	data->flag |= OBJECTSOLVER_ACTIVECLIP;
+	unit_m4(data->invmat);
+}
+
+static void objectsolver_id_looper (bConstraint *con, ConstraintIDFunc func, void *userdata)
+{
+	bObjectSolverConstraint *data= con->data;
+
+	func(con, (ID**)&data->clip, userdata);
+	func(con, (ID**)&data->camera, userdata);
+}
+
+static void objectsolver_evaluate (bConstraint *con, bConstraintOb *cob, ListBase *UNUSED(targets))
+{
+	Scene *scene= cob->scene;
+	bObjectSolverConstraint *data= con->data;
+	MovieClip *clip= data->clip;
+	Object *camob= data->camera ? data->camera : scene->camera;
+
+	if (data->flag & OBJECTSOLVER_ACTIVECLIP)
+		clip= scene->clip;
+
+	if(!camob || !clip)
+		return;
+
+	if (clip) {
+		MovieTracking *tracking= &clip->tracking;
+		MovieTrackingObject *object;
+
+		object= BKE_tracking_named_object(tracking, data->object);
+
+		if(object) {
+			float mat[4][4], obmat[4][4], imat[4][4], cammat[4][4], camimat[4][4], parmat[4][4];
+
+			where_is_object_mat(scene, camob, cammat);
+
+			BKE_tracking_get_interpolated_camera(tracking, object, scene->r.cfra, mat);
+
+			invert_m4_m4(camimat, cammat);
+			mult_m4_m4m4(parmat, cammat, data->invmat);
+
+			copy_m4_m4(cammat, camob->obmat);
+			copy_m4_m4(obmat, cob->matrix);
+
+			invert_m4_m4(imat, mat);
+
+			mul_serie_m4(cob->matrix, cammat, imat, camimat, parmat, obmat, NULL, NULL, NULL);
+		}
+	}
+}
+
+static bConstraintTypeInfo CTI_OBJECTSOLVER = {
+	CONSTRAINT_TYPE_OBJECTSOLVER, /* type */
+	sizeof(bObjectSolverConstraint), /* size */
+	"Object Solver", /* name */
+	"bObjectSolverConstraint", /* struct name */
+	NULL, /* free data */
+	NULL, /* relink data */
+	objectsolver_id_looper, /* id looper */
+	NULL, /* copy data */
+	objectsolver_new_data, /* new data */
+	NULL, /* get constraint targets */
+	NULL, /* flush constraint targets */
+	NULL, /* get target matrix */
+	objectsolver_evaluate /* evaluate */
+};
+
 /* ************************* Constraints Type-Info *************************** */
 /* All of the constraints api functions use bConstraintTypeInfo structs to carry out
  * and operations that involve constraint specific code.
@@ -4168,6 +4267,7 @@ static void constraints_init_typeinfo (void)
 	constraintsTypeInfo[25]= &CTI_PIVOT;			/* Pivot Constraint */
 	constraintsTypeInfo[26]= &CTI_FOLLOWTRACK;		/* Follow Track Constraint */
 	constraintsTypeInfo[27]= &CTI_CAMERASOLVER;		/* Camera Solver Constraint */
+	constraintsTypeInfo[28]= &CTI_OBJECTSOLVER;		/* Object Solver Constraint */
 }
 
 /* This function should be used for getting the appropriate type-info when only

source/blender/blenkernel/intern/depsgraph.c

@@ -649,16 +649,21 @@ static void build_dag_object(DagForest *dag, DagNode *scenenode, Scene *scene, O
 			continue;
 
 		/* special case for camera tracking -- it doesn't use targets to define relations */
-		if(ELEM(cti->type, CONSTRAINT_TYPE_FOLLOWTRACK, CONSTRAINT_TYPE_CAMERASOLVER)) {
+		if(ELEM3(cti->type, CONSTRAINT_TYPE_FOLLOWTRACK, CONSTRAINT_TYPE_CAMERASOLVER, CONSTRAINT_TYPE_OBJECTSOLVER)) {
+			int depends_on_camera= 0;
+
 			if(cti->type==CONSTRAINT_TYPE_FOLLOWTRACK) {
 				bFollowTrackConstraint *data= (bFollowTrackConstraint *)con->data;
 
-				if((data->clip || data->flag&FOLLOWTRACK_ACTIVECLIP) && data->track[0]) {
+				if((data->clip || data->flag&FOLLOWTRACK_ACTIVECLIP) && data->track[0])
-					if(scene->camera) {
+					depends_on_camera= 1;
-						node2 = dag_get_node(dag, scene->camera);
+			}
-						dag_add_relation(dag, node2, node, DAG_RL_DATA_OB|DAG_RL_OB_OB, cti->name);
+			else if(cti->type==CONSTRAINT_TYPE_OBJECTSOLVER)
-					}
+				depends_on_camera= 1;
-				}
+
+			if(depends_on_camera && scene->camera) {
+				node2 = dag_get_node(dag, scene->camera);
+				dag_add_relation(dag, node2, node, DAG_RL_DATA_OB|DAG_RL_OB_OB, cti->name);
 			}
 
 			dag_add_relation(dag,scenenode,node,DAG_RL_SCENE, "Scene Relation");
@@ -2165,7 +2170,7 @@ static void dag_object_time_update_flags(Object *ob)
 			
 			if (cti) {
 				/* special case for camera tracking -- it doesn't use targets to define relations */
-				if(ELEM(cti->type, CONSTRAINT_TYPE_FOLLOWTRACK, CONSTRAINT_TYPE_CAMERASOLVER)) {
+				if(ELEM3(cti->type, CONSTRAINT_TYPE_FOLLOWTRACK, CONSTRAINT_TYPE_CAMERASOLVER, CONSTRAINT_TYPE_OBJECTSOLVER)) {
 					ob->recalc |= OB_RECALC_OB;
 				}
 				else if (cti->get_constraint_targets) {

source/blender/blenkernel/intern/movieclip.c

@@ -816,7 +816,8 @@ void BKE_movieclip_reload(MovieClip *clip)
 
 void BKE_movieclip_update_scopes(MovieClip *clip, MovieClipUser *user, MovieClipScopes *scopes)
 {
-	if(scopes->ok) return;
+	if(scopes->ok)
+		return;
 
 	if(scopes->track_preview) {
 		IMB_freeImBuf(scopes->track_preview);
@@ -827,8 +828,10 @@ void BKE_movieclip_update_scopes(MovieClip *clip, MovieClipUser *user, MovieClip
 	scopes->track= NULL;
 
 	if(clip) {
-		if(clip->tracking.act_track) {
+		MovieTrackingTrack *act_track= BKE_tracking_active_track(&clip->tracking);
-			MovieTrackingTrack *track= clip->tracking.act_track;
+
+		if(act_track) {
+			MovieTrackingTrack *track= act_track;
 			MovieTrackingMarker *marker= BKE_tracking_get_marker(track, user->framenr);
 
 			if(marker->flag&MARKER_DISABLED) {

source/blender/blenkernel/intern/tracking.c

@@ -55,6 +55,7 @@
 #include "BKE_movieclip.h"
 #include "BKE_object.h"
 #include "BKE_scene.h"
+#include "BKE_main.h"	// XXX: ...
 
 #include "IMB_imbuf_types.h"
 #include "IMB_imbuf.h"
@@ -85,11 +86,14 @@ void BKE_tracking_init_settings(MovieTracking *tracking)
 	tracking->settings.keyframe1= 1;
 	tracking->settings.keyframe2= 30;
 	tracking->settings.dist= 1;
+	tracking->settings.object_distance= 1;
 
 	tracking->stabilization.scaleinf= 1.0f;
 	tracking->stabilization.locinf= 1.0f;
 	tracking->stabilization.rotinf= 1.0f;
 	tracking->stabilization.maxscale= 2.0f;
+
+	BKE_tracking_new_object(tracking, "Camera");
 }
 
 void BKE_tracking_clamp_track(MovieTrackingTrack *track, int event)
@@ -208,7 +212,7 @@ void BKE_tracking_track_flag(MovieTrackingTrack *track, int area, int flag, int
 	}
 }
 
-MovieTrackingTrack *BKE_tracking_add_track(MovieTracking *tracking, float x, float y,
+MovieTrackingTrack *BKE_tracking_add_track(MovieTracking *tracking, ListBase *tracksbase, float x, float y,
 			int framenr, int width, int height)
 {
 	MovieTrackingTrack *track;
@@ -251,8 +255,8 @@ MovieTrackingTrack *BKE_tracking_add_track(MovieTracking *tracking, float x, flo
 	if(track->tracker == TRACKER_KLT)
 		BKE_tracking_clamp_track(track, CLAMP_PYRAMID_LEVELS);
 
-	BLI_addtail(&tracking->tracks, track);
+	BLI_addtail(tracksbase, track);
-	BKE_track_unique_name(tracking, track);
+	BKE_track_unique_name(tracksbase, track);
 
 	return track;
 }
@@ -524,18 +528,44 @@ void BKE_tracking_join_tracks(MovieTrackingTrack *dst_track, MovieTrackingTrack
 	dst_track->markersnr= tot;
 }
 
-void BKE_tracking_free(MovieTracking *tracking)
+static void tracking_tracks_free(ListBase *tracks)
 {
 	MovieTrackingTrack *track;
 
-	for(track= tracking->tracks.first; track; track= track->next) {
+	for(track= tracks->first; track; track= track->next) {
 		BKE_tracking_free_track(track);
 	}
 
-	BLI_freelistN(&tracking->tracks);
+	BLI_freelistN(tracks);
+}
 
-	if(tracking->reconstruction.cameras)
+static void tracking_reconstruction_free(MovieTrackingReconstruction *reconstruction)
-		MEM_freeN(tracking->reconstruction.cameras);
+{
+	if(reconstruction->cameras)
+		MEM_freeN(reconstruction->cameras);
+}
+
+static void tracking_object_free(MovieTrackingObject *object)
+{
+	tracking_tracks_free(&object->tracks);
+	tracking_reconstruction_free(&object->reconstruction);
+}
+
+static void tracking_objects_free(ListBase *objects)
+{
+	MovieTrackingObject *object;
+
+	for(object= objects->first; object; object= object->next)
+		tracking_object_free(object);
+
+	BLI_freelistN(objects);
+}
+
+void BKE_tracking_free(MovieTracking *tracking)
+{
+	tracking_tracks_free(&tracking->tracks);
+	tracking_reconstruction_free(&tracking->reconstruction);
+	tracking_objects_free(&tracking->objects);
 
 	if(tracking->stabilization.scaleibuf)
 		IMB_freeImBuf(tracking->stabilization.scaleibuf);
@@ -547,6 +577,9 @@ void BKE_tracking_free(MovieTracking *tracking)
 /*********************** tracks map *************************/
 
 typedef struct TracksMap {
+	char object_name[32];
+	int is_camera;
+
 	int num_tracks;
 	int customdata_size;
 
@@ -558,10 +591,13 @@ typedef struct TracksMap {
 	int ptr;
 } TracksMap;
 
-static TracksMap *tracks_map_new(int num_tracks, int customdata_size)
+static TracksMap *tracks_map_new(const char *object_name, int is_camera, int num_tracks, int customdata_size)
 {
 	TracksMap *map= MEM_callocN(sizeof(TracksMap), "TrackingsMap");
 
+	strcpy(map->object_name, object_name);
+	map->is_camera= is_camera;
+
 	map->num_tracks= num_tracks;
 	map->customdata_size= customdata_size;
 
@@ -607,10 +643,24 @@ static void tracks_map_insert(TracksMap *map, MovieTrackingTrack *track, void *c
 static void tracks_map_merge(TracksMap *map, MovieTracking *tracking)
 {
 	MovieTrackingTrack *track;
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
 	ListBase tracks= {NULL, NULL}, new_tracks= {NULL, NULL};
-	ListBase *old_tracks= &tracking->tracks;
+	ListBase *old_tracks;
 	int a;
 
+	if(map->is_camera) {
+		old_tracks= &tracking->tracks;
+	} else {
+		MovieTrackingObject *object= BKE_tracking_named_object(tracking, map->object_name);
+
+		if(!object) {
+			/* object was deleted by user, create new one */
+			object= BKE_tracking_new_object(tracking, map->object_name);
+		}
+
+		old_tracks= &object->tracks;
+	}
+
 	/* duplicate currently operating tracks to temporary list.
 	   this is needed to keep names in unique state and it's faster to change names
 	   of currently operating tracks (if needed) */
@@ -634,7 +684,7 @@ static void tracks_map_merge(TracksMap *map, MovieTracking *tracking)
 
 			/* original track was found, re-use flags and remove this track */
 			if(cur) {
-				if(cur==tracking->act_track)
+				if(act_track)
 					replace_sel= 1;
 
 				track->flag= cur->flag;
@@ -685,7 +735,7 @@ static void tracks_map_merge(TracksMap *map, MovieTracking *tracking)
 		track= next;
 	}
 
-	tracking->tracks= new_tracks;
+	*old_tracks= new_tracks;
 }
 
 static void tracks_map_free(TracksMap *map, void (*customdata_free) (void *customdata))
@@ -746,7 +796,9 @@ MovieTrackingContext *BKE_tracking_context_new(MovieClip *clip, MovieClipUser *u
 	MovieTrackingContext *context= MEM_callocN(sizeof(MovieTrackingContext), "trackingContext");
 	MovieTracking *tracking= &clip->tracking;
 	MovieTrackingSettings *settings= &tracking->settings;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
 	MovieTrackingTrack *track;
+	MovieTrackingObject *object= BKE_tracking_active_object(tracking);
 	int num_tracks= 0;
 
 	context->settings= *settings;
@@ -757,7 +809,7 @@ MovieTrackingContext *BKE_tracking_context_new(MovieClip *clip, MovieClipUser *u
 	context->sequence= sequence;
 
 	/* count */
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_SELECTED(track) && (track->flag&TRACK_LOCKED)==0) {
 			MovieTrackingMarker *marker= BKE_tracking_get_marker(track, user->framenr);
@@ -772,12 +824,13 @@ MovieTrackingContext *BKE_tracking_context_new(MovieClip *clip, MovieClipUser *u
 	if(num_tracks) {
 		int width, height;
 
-		context->tracks_map= tracks_map_new(num_tracks, sizeof(TrackContext));
+		context->tracks_map= tracks_map_new(object->name, object->flag & TRACKING_OBJECT_CAMERA,
+					num_tracks, sizeof(TrackContext));
 
 		BKE_movieclip_get_size(clip, user, &width, &height);
 
 		/* create tracking data */
-		track= tracking->tracks.first;
+		track= tracksbase->first;
 		while(track) {
 			if(TRACK_SELECTED(track) && (track->flag&TRACK_LOCKED)==0) {
 				MovieTrackingMarker *marker= BKE_tracking_get_marker(track, user->framenr);
@@ -1393,6 +1446,8 @@ typedef struct MovieReconstructContext {
 
 	struct libmv_Reconstruction *reconstruction;
 #endif
+	char object_name[32];
+	int is_camera;
 
 	float focal_length;
 	float principal_point[2];
@@ -1414,13 +1469,13 @@ typedef struct ReconstructProgressData {
 } ReconstructProgressData;
 
 #if WITH_LIBMV
-static struct libmv_Tracks *create_libmv_tracks(MovieTracking *tracking, int width, int height)
+static struct libmv_Tracks *create_libmv_tracks(ListBase *tracksbase, int width, int height)
 {
 	int tracknr= 0;
 	MovieTrackingTrack *track;
 	struct libmv_Tracks *tracks= libmv_tracksNew();
 
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		int a= 0;
 
@@ -1464,16 +1519,28 @@ static void retrieve_libmv_reconstruct_intrinscis(MovieReconstructContext *conte
 static int retrieve_libmv_reconstruct_tracks(MovieReconstructContext *context, MovieTracking *tracking)
 {
 	struct libmv_Reconstruction *libmv_reconstruction= context->reconstruction;
-	MovieTrackingReconstruction *reconstruction= &tracking->reconstruction;
+	MovieTrackingReconstruction *reconstruction= NULL;
 	MovieReconstructedCamera *reconstructed;
 	MovieTrackingTrack *track;
+	ListBase *tracksbase=  NULL;
 	int ok= 1, tracknr= 0, a, origin_set= 0;
 	int sfra= context->sfra, efra= context->efra;
 	float imat[4][4];
 
+	if(context->is_camera) {
+		tracksbase= &tracking->tracks;
+		reconstruction= &tracking->reconstruction;
+	}
+	else {
+		MovieTrackingObject *object= BKE_tracking_named_object(tracking, context->object_name);
+
+		tracksbase= &object->tracks;
+		reconstruction= &object->reconstruction;
+	}
+
 	unit_m4(imat);
 
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		double pos[3];
 
@@ -1539,7 +1606,7 @@ static int retrieve_libmv_reconstruct_tracks(MovieReconstructContext *context, M
 	}
 
 	if(origin_set) {
-		track= tracking->tracks.first;
+		track= tracksbase->first;
 		while(track) {
 			if(track->flag&TRACK_HAS_BUNDLE)
 				mul_v3_m4v3(track->bundle_pos, imat, track->bundle_pos);
@@ -1555,19 +1622,20 @@ static int retrieve_libmv_reconstruct_tracks(MovieReconstructContext *context, M
 
 static int retrieve_libmv_reconstruct(MovieReconstructContext *context, MovieTracking *tracking)
 {
-	tracks_map_merge(context->tracks_map, tracking);
-
 	/* take the intrinscis back from libmv */
 	retrieve_libmv_reconstruct_intrinscis(context, tracking);
 
 	return retrieve_libmv_reconstruct_tracks(context, tracking);
 }
 
-static int get_refine_intrinsics_flags(MovieTracking *tracking)
+static int get_refine_intrinsics_flags(MovieTracking *tracking, MovieTrackingObject *object)
 {
 	int refine= tracking->settings.refine_camera_intrinsics;
 	int flags= 0;
 
+	if((object->flag&TRACKING_OBJECT_CAMERA)==0)
+		return 0;
+
 	if(refine&REFINE_FOCAL_LENGTH)
 		flags|= LIBMV_REFINE_FOCAL_LENGTH;
 
@@ -1583,13 +1651,13 @@ static int get_refine_intrinsics_flags(MovieTracking *tracking)
 	return flags;
 }
 
-static int count_tracks_on_both_keyframes(MovieTracking *tracking)
+static int count_tracks_on_both_keyframes(MovieTracking *tracking, ListBase *tracksbase)
 {
 	int tot= 0;
 	int frame1= tracking->settings.keyframe1, frame2= tracking->settings.keyframe2;
 	MovieTrackingTrack *track;
 
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(BKE_tracking_has_marker(track, frame1))
 			if(BKE_tracking_has_marker(track, frame2))
@@ -1602,10 +1670,12 @@ static int count_tracks_on_both_keyframes(MovieTracking *tracking)
 }
 #endif
 
-int BKE_tracking_can_reconstruct(MovieTracking *tracking, char *error_msg, int error_size)
+int BKE_tracking_can_reconstruct(MovieTracking *tracking, MovieTrackingObject *object, char *error_msg, int error_size)
 {
 #if WITH_LIBMV
-	if(count_tracks_on_both_keyframes(tracking)<8) {
+	ListBase *tracksbase= BKE_tracking_object_tracks(tracking, object);
+
+	if(count_tracks_on_both_keyframes(tracking, tracksbase)<8) {
 		BLI_strncpy(error_msg, "At least 8 tracks on both of keyframes are needed for reconstruction", error_size);
 		return 0;
 	}
@@ -1620,17 +1690,22 @@ int BKE_tracking_can_reconstruct(MovieTracking *tracking, char *error_msg, int e
 }
 
 MovieReconstructContext* BKE_tracking_reconstruction_context_new(MovieTracking *tracking,
-			int keyframe1, int keyframe2, int width, int height)
+			MovieTrackingObject *object, int keyframe1, int keyframe2, int width, int height)
 {
 	MovieReconstructContext *context= MEM_callocN(sizeof(MovieReconstructContext), "MovieReconstructContext data");
 	MovieTrackingCamera *camera= &tracking->camera;
+	ListBase *tracksbase= BKE_tracking_object_tracks(tracking, object);
 	float aspy= 1.0f/tracking->camera.pixel_aspect;
-	int num_tracks= BLI_countlist(&tracking->tracks);
+	int num_tracks= BLI_countlist(tracksbase);
 	int sfra= INT_MAX, efra= INT_MIN;
 	MovieTrackingTrack *track;
 
-	context->tracks_map= tracks_map_new(num_tracks, 0);
+	strcpy(context->object_name, object->name);
-	track= tracking->tracks.first;
+	context->is_camera = object->flag&TRACKING_OBJECT_CAMERA;
+
+	context->tracks_map= tracks_map_new(context->object_name, context->is_camera, num_tracks, 0);
+
+	track= tracksbase->first;
 	while(track) {
 		int first= 0, last= track->markersnr-1;
 		MovieTrackingMarker *first_marker= &track->markers[0];
@@ -1663,10 +1738,10 @@ MovieReconstructContext* BKE_tracking_reconstruction_context_new(MovieTracking *
 	context->efra= efra;
 
 #ifdef WITH_LIBMV
-	context->tracks= create_libmv_tracks(tracking, width, height*aspy);
+	context->tracks= create_libmv_tracks(tracksbase, width, height*aspy);
 	context->keyframe1= keyframe1;
 	context->keyframe2= keyframe2;
-	context->refine_flags= get_refine_intrinsics_flags(tracking);
+	context->refine_flags= get_refine_intrinsics_flags(tracking, object);
 #else
 	(void) width;
 	(void) height;
@@ -1763,8 +1838,22 @@ void BKE_tracking_solve_reconstruction(MovieReconstructContext *context, short *
 
 int BKE_tracking_finish_reconstruction(MovieReconstructContext *context, MovieTracking *tracking)
 {
-	tracking->reconstruction.error= context->reprojection_error;
+	MovieTrackingReconstruction *reconstruction;
-	tracking->reconstruction.flag|= TRACKING_RECONSTRUCTED;
+
+	tracks_map_merge(context->tracks_map, tracking);
+
+	if(context->is_camera) {
+		reconstruction= &tracking->reconstruction;
+	}
+	else {
+		MovieTrackingObject *object;
+
+		object= BKE_tracking_named_object(tracking, context->object_name);
+		reconstruction= &object->reconstruction;
+	}
+
+	reconstruction->error= context->reprojection_error;
+	reconstruction->flag|= TRACKING_RECONSTRUCTED;
 
 #ifdef WITH_LIBMV
 	if(!retrieve_libmv_reconstruct(context, tracking))
@@ -1774,14 +1863,15 @@ int BKE_tracking_finish_reconstruction(MovieReconstructContext *context, MovieTr
 	return 1;
 }
 
-void BKE_track_unique_name(MovieTracking *tracking, MovieTrackingTrack *track)
+void BKE_track_unique_name(ListBase *tracksbase, MovieTrackingTrack *track)
 {
-	BLI_uniquename(&tracking->tracks, track, "Track", '.', offsetof(MovieTrackingTrack, name), sizeof(track->name));
+	BLI_uniquename(tracksbase, track, "Track", '.', offsetof(MovieTrackingTrack, name), sizeof(track->name));
 }
 
-MovieTrackingTrack *BKE_tracking_named_track(MovieTracking *tracking, const char *name)
+MovieTrackingTrack *BKE_tracking_named_track(MovieTracking *tracking, MovieTrackingObject *object, const char *name)
 {
-	MovieTrackingTrack *track= tracking->tracks.first;
+	ListBase *tracksbase= BKE_tracking_object_tracks(tracking, object);
+	MovieTrackingTrack *track= tracksbase->first;
 
 	while(track) {
 		if(!strcmp(track->name, name))
@@ -1793,9 +1883,8 @@ MovieTrackingTrack *BKE_tracking_named_track(MovieTracking *tracking, const char
 	return NULL;
 }
 
-static int reconstruction_camera_index(MovieTracking *tracking, int framenr, int nearest)
+static int reconstruction_camera_index(MovieTrackingReconstruction *reconstruction, int framenr, int nearest)
 {
-	MovieTrackingReconstruction *reconstruction= &tracking->reconstruction;
 	MovieReconstructedCamera *cameras= reconstruction->cameras;
 	int a= 0, d= 1;
 
@@ -1847,21 +1936,41 @@ static int reconstruction_camera_index(MovieTracking *tracking, int framenr, int
 	return -1;
 }
 
-MovieReconstructedCamera *BKE_tracking_get_reconstructed_camera(MovieTracking *tracking, int framenr)
+static void scale_reconstructed_camera(MovieTrackingObject *object, float mat[4][4])
 {
-	int a= reconstruction_camera_index(tracking, framenr, 0);
+	if((object->flag&TRACKING_OBJECT_CAMERA)==0) {
+		float smat[4][4];
+
+		scale_m4_fl(smat, 1.0f/object->scale);
+		mult_m4_m4m4(mat, mat, smat);
+	}
+}
+
+MovieReconstructedCamera *BKE_tracking_get_reconstructed_camera(MovieTracking *tracking,
+			MovieTrackingObject *object, int framenr)
+{
+	MovieTrackingReconstruction *reconstruction;
+	int a;
+
+	reconstruction= BKE_tracking_object_reconstruction(tracking, object);
+	a= reconstruction_camera_index(reconstruction, framenr, 0);
 
 	if(a==-1)
 		return NULL;
 
-	return &tracking->reconstruction.cameras[a];
+	return &reconstruction->cameras[a];
 }
 
-void BKE_tracking_get_interpolated_camera(MovieTracking *tracking, int framenr, float mat[4][4])
+void BKE_tracking_get_interpolated_camera(MovieTracking *tracking, MovieTrackingObject *object,
+			int framenr, float mat[4][4])
 {
-	MovieTrackingReconstruction *reconstruction= &tracking->reconstruction;
+	MovieTrackingReconstruction *reconstruction;
-	MovieReconstructedCamera *cameras= reconstruction->cameras;
+	MovieReconstructedCamera *cameras;
-	int a= reconstruction_camera_index(tracking, framenr, 1);
+	int a;
+
+	reconstruction= BKE_tracking_object_reconstruction(tracking, object);
+	cameras= reconstruction->cameras;
+	a= reconstruction_camera_index(reconstruction, framenr, 1);
 
 	if(a==-1) {
 		unit_m4(mat);
@@ -1875,6 +1984,8 @@ void BKE_tracking_get_interpolated_camera(MovieTracking *tracking, int framenr,
 	} else {
 		copy_m4_m4(mat, cameras[a].mat);
 	}
+
+	scale_reconstructed_camera(object, mat);
 }
 
 void BKE_get_tracking_mat(Scene *scene, Object *ob, float mat[4][4])
@@ -1913,7 +2024,8 @@ void BKE_tracking_camera_to_blender(MovieTracking *tracking, Scene *scene, Camer
 	BKE_tracking_camera_shift(tracking, width, height, &camera->shiftx, &camera->shifty);
 }
 
-void BKE_tracking_projection_matrix(MovieTracking *tracking, int framenr, int winx, int winy, float mat[4][4])
+void BKE_tracking_projection_matrix(MovieTracking *tracking, MovieTrackingObject *object,
+			int framenr, int winx, int winy, float mat[4][4])
 {
 	MovieReconstructedCamera *camera;
 	float lens= tracking->camera.focal*tracking->camera.sensor_width/(float)winx;
@@ -1946,7 +2058,8 @@ void BKE_tracking_projection_matrix(MovieTracking *tracking, int framenr, int wi
 
 	perspective_m4(winmat, left, right, bottom, top, clipsta, clipend);
 
-	camera= BKE_tracking_get_reconstructed_camera(tracking, framenr);
+	camera= BKE_tracking_get_reconstructed_camera(tracking, object, framenr);
+
 	if(camera) {
 		float imat[4][4];
 
@@ -1955,6 +2068,77 @@ void BKE_tracking_projection_matrix(MovieTracking *tracking, int framenr, int wi
 	} else copy_m4_m4(mat, winmat);
 }
 
+ListBase *BKE_tracking_get_tracks(MovieTracking *tracking)
+{
+	MovieTrackingObject *object= BKE_tracking_active_object(tracking);
+
+	if(object && (object->flag & TRACKING_OBJECT_CAMERA) == 0) {
+		return &object->tracks;
+	}
+
+	return &tracking->tracks;
+}
+
+MovieTrackingTrack *BKE_tracking_active_track(MovieTracking *tracking)
+{
+	ListBase *tracksbase;
+
+	if(!tracking->act_track)
+		return NULL;
+
+	tracksbase= BKE_tracking_get_tracks(tracking);
+
+	/* check that active track is in current tracks list */
+	if(BLI_findindex(tracksbase, tracking->act_track) >= 0)
+		return tracking->act_track;
+
+	return NULL;
+}
+
+MovieTrackingObject *BKE_tracking_active_object(MovieTracking *tracking)
+{
+	return BLI_findlink(&tracking->objects, tracking->objectnr);
+}
+
+MovieTrackingObject *BKE_tracking_get_camera_object(MovieTracking *tracking)
+{
+	MovieTrackingObject *object= tracking->objects.first;
+
+	while(object) {
+		if(object->flag & TRACKING_OBJECT_CAMERA)
+			return object;
+
+		object= object->next;
+	}
+
+	return NULL;
+}
+
+ListBase *BKE_tracking_object_tracks(MovieTracking *tracking, MovieTrackingObject *object)
+{
+	if(object->flag & TRACKING_OBJECT_CAMERA) {
+		return &tracking->tracks;
+	}
+
+	return &object->tracks;
+}
+
+MovieTrackingReconstruction *BKE_tracking_object_reconstruction(MovieTracking *tracking, MovieTrackingObject *object)
+{
+	if(object->flag & TRACKING_OBJECT_CAMERA) {
+		return &tracking->reconstruction;
+	}
+
+	return &object->reconstruction;
+}
+
+MovieTrackingReconstruction *BKE_tracking_get_reconstruction(MovieTracking *tracking)
+{
+	MovieTrackingObject *object= BKE_tracking_active_object(tracking);
+
+	return BKE_tracking_object_reconstruction(tracking, object);
+}
+
 void BKE_tracking_apply_intrinsics(MovieTracking *tracking, float co[2], float nco[2])
 {
 	MovieTrackingCamera *camera= &tracking->camera;
@@ -2041,8 +2225,9 @@ static int point_in_layer(bGPDlayer *layer, float x, float y)
 	return 0;
 }
 
-static void retrieve_libmv_features(MovieTracking *tracking, struct libmv_Features *features,
+static void retrieve_libmv_features(MovieTracking *tracking, ListBase *tracksbase,
-			int framenr, int width, int height, bGPDlayer *layer, int place_outside_layer)
+			struct libmv_Features *features, int framenr, int width, int height,
+			bGPDlayer *layer, int place_outside_layer)
 {
 	int a;
 
@@ -2062,7 +2247,7 @@ static void retrieve_libmv_features(MovieTracking *tracking, struct libmv_Featur
 			ok= point_in_layer(layer, xu, yu)!=place_outside_layer;
 
 		if(ok) {
-			track= BKE_tracking_add_track(tracking, xu, yu, framenr, width, height);
+			track= BKE_tracking_add_track(tracking, tracksbase, xu, yu, framenr, width, height);
 			track->flag|= SELECT;
 			track->pat_flag|= SELECT;
 			track->search_flag|= SELECT;
@@ -2071,7 +2256,7 @@ static void retrieve_libmv_features(MovieTracking *tracking, struct libmv_Featur
 }
 #endif
 
-void BKE_tracking_detect_fast(MovieTracking *tracking, ImBuf *ibuf,
+void BKE_tracking_detect_fast(MovieTracking *tracking, ListBase *tracksbase, ImBuf *ibuf,
 			int framenr, int margin, int min_trackness, int min_distance, bGPDlayer *layer,
 			int place_outside_layer)
 {
@@ -2079,11 +2264,13 @@ void BKE_tracking_detect_fast(MovieTracking *tracking, ImBuf *ibuf,
 	struct libmv_Features *features;
 	unsigned char *pixels= get_ucharbuf(ibuf);
 
-	features= libmv_detectFeaturesFAST(pixels, ibuf->x, ibuf->y, ibuf->x, margin, min_trackness, min_distance);
+	features= libmv_detectFeaturesFAST(pixels, ibuf->x, ibuf->y, ibuf->x,
+			margin, min_trackness, min_distance);
 
 	MEM_freeN(pixels);
 
-	retrieve_libmv_features(tracking, features, framenr, ibuf->x, ibuf->y, layer, place_outside_layer);
+	retrieve_libmv_features(tracking, tracksbase, features, framenr,
+			ibuf->x, ibuf->y, layer, place_outside_layer);
 
 	libmv_destroyFeatures(features);
 #else
@@ -2098,22 +2285,34 @@ void BKE_tracking_detect_fast(MovieTracking *tracking, ImBuf *ibuf,
 #endif
 }
 
-MovieTrackingTrack *BKE_tracking_indexed_track(MovieTracking *tracking, int tracknr)
+MovieTrackingTrack *BKE_tracking_indexed_track(MovieTracking *tracking, int tracknr, ListBase **tracksbase_r)
 {
-	MovieTrackingTrack *track= tracking->tracks.first;
+	MovieTrackingObject *object;
 	int cur= 1;
 
-	while(track) {
+	object= tracking->objects.first;
-		if(track->flag&TRACK_HAS_BUNDLE) {
+	while(object) {
-			if(cur==tracknr)
+		ListBase *tracksbase= BKE_tracking_object_tracks(tracking, object);
-				return track;
+		MovieTrackingTrack *track= tracksbase->first;
 
-			cur++;
+		while(track) {
+			if(track->flag&TRACK_HAS_BUNDLE) {
+				if(cur==tracknr) {
+					*tracksbase_r= tracksbase;
+					return track;
+				}
+
+				cur++;
+			}
+
+			track= track->next;
 		}
 
-		track= track->next;
+		object= object->next;
 	}
 
+	*tracksbase_r= NULL;
+
 	return NULL;
 }
 
@@ -2125,6 +2324,8 @@ static int stabilization_median_point(MovieTracking *tracking, int framenr, floa
 
 	INIT_MINMAX2(min, max);
 
+	(void) tracking;
+
 	track= tracking->tracks.first;
 	while(track) {
 		if(track->flag&TRACK_USE_2D_STAB) {
@@ -2562,12 +2763,12 @@ ImBuf *BKE_tracking_distort(MovieTracking *tracking, ImBuf *ibuf, int width, int
 }
 
 /* area - which part of marker should be selected. see TRACK_AREA_* constants */
-void BKE_tracking_select_track(MovieTracking *tracking, MovieTrackingTrack *track, int area, int extend)
+void BKE_tracking_select_track(ListBase *tracksbase, MovieTrackingTrack *track, int area, int extend)
 {
 	if(extend) {
 		BKE_tracking_track_flag(track, area, SELECT, 0);
 	} else {
-		MovieTrackingTrack *cur= tracking->tracks.first;
+		MovieTrackingTrack *cur= tracksbase->first;
 
 		while(cur) {
 			if(cur==track) {
@@ -2587,3 +2788,78 @@ void BKE_tracking_deselect_track(MovieTrackingTrack *track, int area)
 {
 	BKE_tracking_track_flag(track, area, SELECT, 1);
 }
+
+MovieTrackingObject *BKE_tracking_new_object(MovieTracking *tracking, const char *name)
+{
+	MovieTrackingObject *object= MEM_callocN(sizeof(MovieTrackingObject), "tracking object");
+
+	if(tracking->tot_object==0) {
+		/* first object is always camera */
+		BLI_strncpy(object->name, "Camera", sizeof(object->name));
+
+		object->flag|= TRACKING_OBJECT_CAMERA;
+	}
+	else {
+		BLI_strncpy(object->name, name, sizeof(object->name));
+	}
+
+	BLI_addtail(&tracking->objects, object);
+
+	tracking->tot_object++;
+	tracking->objectnr= BLI_countlist(&tracking->objects) - 1;
+
+	BKE_tracking_object_unique_name(tracking, object);
+
+	return object;
+}
+
+void BKE_tracking_remove_object(MovieTracking *tracking, MovieTrackingObject *object)
+{
+	MovieTrackingTrack *track;
+	int index= BLI_findindex(&tracking->objects, object);
+
+	if(index<0)
+		return;
+
+	if(object->flag & TRACKING_OBJECT_CAMERA) {
+		/* object used for camera solving can't be deleted */
+		return;
+	}
+
+	track= object->tracks.first;
+	while(track) {
+		if(track==tracking->act_track)
+			tracking->act_track= NULL;
+
+		track= track->next;
+	}
+
+	tracking_object_free(object);
+	BLI_freelinkN(&tracking->objects, object);
+
+	tracking->tot_object--;
+
+	if(index>0)
+		tracking->objectnr= index-1;
+	else
+		tracking->objectnr= 0;
+}
+
+void BKE_tracking_object_unique_name(MovieTracking *tracking, MovieTrackingObject *object)
+{
+	BLI_uniquename(&tracking->objects, object, "Object", '.', offsetof(MovieTrackingObject, name), sizeof(object->name));
+}
+
+MovieTrackingObject *BKE_tracking_named_object(MovieTracking *tracking, const char *name)
+{
+	MovieTrackingObject *object= tracking->objects.first;
+
+	while(object) {
+		if(!strcmp(object->name, name))
+			return object;
+
+		object= object->next;
+	}
+
+	return NULL;
+}

source/blender/blenlib/intern/math_matrix.c

@@ -195,8 +195,14 @@ void mul_m3_m3m3(float m1[][3], float m3_[][3], float m2_[][3])
 	m1[2][2]= m2[2][0]*m3[0][2] + m2[2][1]*m3[1][2] + m2[2][2]*m3[2][2]; 
 }
 
-void mul_m4_m4m3(float (*m1)[4], float (*m3)[4], float (*m2)[3])
+void mul_m4_m4m3(float (*m1)[4], float (*m3_)[4], float (*m2_)[3])
 {
+	float m2[3][3], m3[4][4];
+
+	/* copy so it works when m1 is the same pointer as m2 or m3 */
+	copy_m3_m3(m2, m2_);
+	copy_m4_m4(m3, m3_);
+
 	m1[0][0]= m2[0][0]*m3[0][0] + m2[0][1]*m3[1][0] + m2[0][2]*m3[2][0];
 	m1[0][1]= m2[0][0]*m3[0][1] + m2[0][1]*m3[1][1] + m2[0][2]*m3[2][1];
 	m1[0][2]= m2[0][0]*m3[0][2] + m2[0][1]*m3[1][2] + m2[0][2]*m3[2][2];

source/blender/blenloader/intern/readfile.c

@@ -5969,10 +5969,29 @@ static void lib_link_group(FileData *fd, Main *main)
 
 /* ***************** READ MOVIECLIP *************** */
 
+static void direct_link_movieReconstruction(FileData *fd, MovieTrackingReconstruction *reconstruction)
+{
+	reconstruction->cameras= newdataadr(fd, reconstruction->cameras);
+}
+
+static void direct_link_movieTracks(FileData *fd, ListBase *tracksbase)
+{
+	MovieTrackingTrack *track;
+
+	link_list(fd, tracksbase);
+
+	track= tracksbase->first;
+	while(track) {
+		track->markers= newdataadr(fd, track->markers);
+
+		track= track->next;
+	}
+}
+
 static void direct_link_movieclip(FileData *fd, MovieClip *clip)
 {
 	MovieTracking *tracking= &clip->tracking;
-	MovieTrackingTrack *track;
+	MovieTrackingObject *object;
 
 	if(fd->movieclipmap) clip->cache= newmclipadr(fd, clip->cache);
 	else clip->cache= NULL;
@@ -5980,16 +5999,8 @@ static void direct_link_movieclip(FileData *fd, MovieClip *clip)
 	if(fd->movieclipmap) clip->tracking.camera.intrinsics= newmclipadr(fd, clip->tracking.camera.intrinsics);
 	else clip->tracking.camera.intrinsics= NULL;
 
-	tracking->reconstruction.cameras= newdataadr(fd, tracking->reconstruction.cameras);
+	direct_link_movieTracks(fd, &tracking->tracks);
-
+	direct_link_movieReconstruction(fd, &tracking->reconstruction);
-	link_list(fd, &tracking->tracks);
-
-	track= tracking->tracks.first;
-	while(track) {
-		track->markers= newdataadr(fd, track->markers);
-
-		track= track->next;
-	}
 
 	clip->tracking.act_track= newdataadr(fd, clip->tracking.act_track);
 
@@ -6000,6 +6011,16 @@ static void direct_link_movieclip(FileData *fd, MovieClip *clip)
 	clip->tracking.stabilization.ok= 0;
 	clip->tracking.stabilization.scaleibuf= NULL;
 	clip->tracking.stabilization.rot_track= newdataadr(fd, clip->tracking.stabilization.rot_track);
+
+	link_list(fd, &tracking->objects);
+
+	object= tracking->objects.first;
+	while(object) {
+		direct_link_movieTracks(fd, &object->tracks);
+		direct_link_movieReconstruction(fd, &object->reconstruction);
+
+		object= object->next;
+	}
 }
 
 static void lib_link_movieclip(FileData *fd, Main *main)
@@ -12773,8 +12794,43 @@ static void do_versions(FileData *fd, Library *lib, Main *main)
 		}
 		{
 			MovieClip *clip;
-			for(clip= main->movieclip.first; clip; clip= clip->id.next) {
+			Object *ob;
+
+			for (clip= main->movieclip.first; clip; clip= clip->id.next) {
+				MovieTracking *tracking= &clip->tracking;
+				MovieTrackingObject *tracking_object= tracking->objects.first;
+
 				clip->proxy.build_tc_flag|= IMB_TC_RECORD_RUN_NO_GAPS;
+
+				if(!tracking->settings.object_distance)
+					tracking->settings.object_distance= 1.0f;
+
+				if(tracking->objects.first == NULL)
+					BKE_tracking_new_object(tracking, "Camera");
+
+				while(tracking_object) {
+					if(!tracking_object->scale)
+						tracking_object->scale= 1.0f;
+
+					tracking_object= tracking_object->next;
+				}
+			}
+
+			for (ob= main->object.first; ob; ob= ob->id.next) {
+				bConstraint *con;
+				for (con= ob->constraints.first; con; con=con->next) {
+					bConstraintTypeInfo *cti= constraint_get_typeinfo(con);
+
+					if(!cti)
+						continue;
+
+					if(cti->type==CONSTRAINT_TYPE_OBJECTSOLVER) {
+						bObjectSolverConstraint *data= (bObjectSolverConstraint *)con->data;
+
+						if(data->invmat[3][3]==0.0f)
+							unit_m4(data->invmat);
+					}
+				}
 			}
 		}
 	}

source/blender/blenloader/intern/writefile.c

@@ -2526,6 +2526,27 @@ static void write_scripts(WriteData *wd, ListBase *idbase)
 	}
 }
 
+static void write_movieTracks(WriteData *wd, ListBase *tracks)
+{
+	MovieTrackingTrack *track;
+
+	track= tracks->first;
+	while(track) {
+		writestruct(wd, DATA, "MovieTrackingTrack", 1, track);
+
+		if(track->markers)
+			writestruct(wd, DATA, "MovieTrackingMarker", track->markersnr, track->markers);
+
+		track= track->next;
+	}
+}
+
+static void write_movieReconstruction(WriteData *wd, MovieTrackingReconstruction *reconstruction)
+{
+	if(reconstruction->camnr)
+		writestruct(wd, DATA, "MovieReconstructedCamera", reconstruction->camnr, reconstruction->cameras);
+}
+
 static void write_movieclips(WriteData *wd, ListBase *idbase)
 {
 	MovieClip *clip;
@@ -2534,20 +2555,20 @@ static void write_movieclips(WriteData *wd, ListBase *idbase)
 	while(clip) {
 		if(clip->id.us>0 || wd->current) {
 			MovieTracking *tracking= &clip->tracking;
-			MovieTrackingTrack *track;
+			MovieTrackingObject *object;
 			writestruct(wd, ID_MC, "MovieClip", 1, clip);
 
-			if(tracking->reconstruction.camnr)
+			write_movieTracks(wd, &tracking->tracks);
-				writestruct(wd, DATA, "MovieReconstructedCamera", tracking->reconstruction.camnr, tracking->reconstruction.cameras);
+			write_movieReconstruction(wd, &tracking->reconstruction);
 
-			track= tracking->tracks.first;
+			object= tracking->objects.first;
-			while(track) {
+			while(object) {
-				writestruct(wd, DATA, "MovieTrackingTrack", 1, track);
+				writestruct(wd, DATA, "MovieTrackingObject", 1, object);
 
-				if(track->markers)
+				write_movieTracks(wd, &object->tracks);
-					writestruct(wd, DATA, "MovieTrackingMarker", track->markersnr, track->markers);
+				write_movieReconstruction(wd, &object->reconstruction);
 
-				track= track->next;
+				object= object->next;
 			}
 		}
 

source/blender/editors/interface/interface_templates.c

@@ -2201,6 +2201,17 @@ static void list_item_row(bContext *C, uiLayout *layout, PointerRNA *ptr, Pointe
 		}
 		uiDefButR(block, OPTION, 0, "", 0, 0, UI_UNIT_X, UI_UNIT_Y, itemptr, "is_active", i, 0, 0, 0, 0,  NULL);
 	}
+	else if(itemptr->type == &RNA_MovieTrackingObject) {
+		MovieTrackingObject *tracking_object= (MovieTrackingObject*)itemptr->data;
+
+		split= uiLayoutSplit(sub, 0.75f, 0);
+		if(tracking_object->flag&TRACKING_OBJECT_CAMERA) {
+			uiItemL(split, name, ICON_CAMERA_DATA);
+		}
+		else {
+			uiItemL(split, name, ICON_OBJECT_DATA);
+		}
+	}
 
 	/* There is a last chance to display custom controls (in addition to the name/label):
 	 * If the given item property group features a string property named as prop_list,

source/blender/editors/object/object_constraint.c

@@ -408,8 +408,21 @@ static void test_constraints (Object *owner, bPoseChannel *pchan)
 
 				if((data->flag&CAMERASOLVER_ACTIVECLIP)==0) {
 					if(data->clip != NULL && data->track[0]) {
-						if (!BKE_tracking_named_track(&data->clip->tracking, data->track))
+						MovieTracking *tracking= &data->clip->tracking;
+						MovieTrackingObject *tracking_object;
+
+						if(data->object[0])
+							tracking_object= BKE_tracking_named_object(tracking, data->object);
+						else
+							tracking_object= BKE_tracking_get_camera_object(tracking);
+
+						if(!tracking_object) {
 							curcon->flag |= CONSTRAINT_DISABLE;
+						}
+						else {
+							if (!BKE_tracking_named_track(tracking, tracking_object, data->track))
+								curcon->flag |= CONSTRAINT_DISABLE;
+						}
 					}
 					else curcon->flag |= CONSTRAINT_DISABLE;
 				}
@@ -420,6 +433,12 @@ static void test_constraints (Object *owner, bPoseChannel *pchan)
 				if((data->flag&CAMERASOLVER_ACTIVECLIP)==0 && data->clip == NULL)
 					curcon->flag |= CONSTRAINT_DISABLE;
 			}
+			else if (curcon->type == CONSTRAINT_TYPE_OBJECTSOLVER) {
+				bObjectSolverConstraint *data = curcon->data;
+
+				if((data->flag&CAMERASOLVER_ACTIVECLIP)==0 && data->clip == NULL)
+					curcon->flag |= CONSTRAINT_DISABLE;
+			}
 			
 			/* Check targets for constraints */
 			if (cti && cti->get_constraint_targets) {
@@ -684,25 +703,13 @@ void CONSTRAINT_OT_limitdistance_reset (wmOperatorType *ot)
 
 /* ------------- Child-Of Constraint ------------------ */
 
-/* ChildOf Constraint - set inverse callback */
+static void child_get_inverse_matrix (Scene *scene, Object *ob, bConstraint *con, float invmat[4][4])
-static int childof_set_inverse_exec (bContext *C, wmOperator *op)
 {
-	Scene *scene= CTX_data_scene(C);
-	Object *ob = ED_object_active_context(C);
-	bConstraint *con = edit_constraint_property_get(op, ob, CONSTRAINT_TYPE_CHILDOF);
-	bChildOfConstraint *data= (con) ? (bChildOfConstraint *)con->data : NULL;
 	bConstraint *lastcon = NULL;
 	bPoseChannel *pchan= NULL;
 	
-	/* despite 3 layers of checks, we may still not be able to find a constraint */
-	if (data == NULL) {
-		printf("DEBUG: Child-Of Set Inverse - object = '%s'\n", (ob)? ob->id.name+2 : "<None>");
-		BKE_report(op->reports, RPT_ERROR, "Couldn't find constraint data for Child-Of Set Inverse");
-		return OPERATOR_CANCELLED;
-	}
-	
 	/* nullify inverse matrix first */
-	unit_m4(data->invmat);
+	unit_m4(invmat);
 	
 	/* try to find a pose channel - assume that this is the constraint owner */
 	// TODO: get from context instead?
@@ -748,7 +755,7 @@ static int childof_set_inverse_exec (bContext *C, wmOperator *op)
 		 */
 		invert_m4_m4(imat, pchan->pose_mat);
 		mult_m4_m4m4(tmat, pmat, imat);
-		invert_m4_m4(data->invmat, tmat);
+		invert_m4_m4(invmat, tmat);
 		
 		/* 5. restore constraints */
 		pchan->constraints.last = lastcon;
@@ -770,9 +777,27 @@ static int childof_set_inverse_exec (bContext *C, wmOperator *op)
 		
 		/* use what_does_parent to find inverse - just like for normal parenting */
 		what_does_parent(scene, ob, &workob);
-		invert_m4_m4(data->invmat, workob.obmat);
+		invert_m4_m4(invmat, workob.obmat);
+	}
+}
+
+/* ChildOf Constraint - set inverse callback */
+static int childof_set_inverse_exec (bContext *C, wmOperator *op)
+{
+	Scene *scene= CTX_data_scene(C);
+	Object *ob = ED_object_active_context(C);
+	bConstraint *con = edit_constraint_property_get(op, ob, CONSTRAINT_TYPE_CHILDOF);
+	bChildOfConstraint *data= (con) ? (bChildOfConstraint *)con->data : NULL;
+
+	/* despite 3 layers of checks, we may still not be able to find a constraint */
+	if (data == NULL) {
+		printf("DEBUG: Child-Of Set Inverse - object = '%s'\n", (ob)? ob->id.name+2 : "<None>");
+		BKE_report(op->reports, RPT_ERROR, "Couldn't find constraint data for Child-Of Set Inverse");
+		return OPERATOR_CANCELLED;
 	}
 	
+	child_get_inverse_matrix(scene, ob, con, data->invmat);
+
 	WM_event_add_notifier(C, NC_OBJECT|ND_CONSTRAINT, ob);
 	
 	return OPERATOR_FINISHED;
@@ -846,6 +871,96 @@ void CONSTRAINT_OT_childof_clear_inverse (wmOperatorType *ot)
 	edit_constraint_properties(ot);
 }
 
+/* ------------- Object Solver Constraint ------------------ */
+
+static int objectsolver_set_inverse_exec (bContext *C, wmOperator *op)
+{
+	Scene *scene= CTX_data_scene(C);
+	Object *ob = ED_object_active_context(C);
+	bConstraint *con = edit_constraint_property_get(op, ob, CONSTRAINT_TYPE_OBJECTSOLVER);
+	bObjectSolverConstraint *data= (con) ? (bObjectSolverConstraint *)con->data : NULL;
+
+	/* despite 3 layers of checks, we may still not be able to find a constraint */
+	if (data == NULL) {
+		printf("DEBUG: Child-Of Set Inverse - object = '%s'\n", (ob)? ob->id.name+2 : "<None>");
+		BKE_report(op->reports, RPT_ERROR, "Couldn't find constraint data for Child-Of Set Inverse");
+		return OPERATOR_CANCELLED;
+	}
+
+	child_get_inverse_matrix(scene, ob, con, data->invmat);
+
+	WM_event_add_notifier(C, NC_OBJECT|ND_CONSTRAINT, ob);
+
+	return OPERATOR_FINISHED;
+}
+
+static int objectsolver_set_inverse_invoke(bContext *C, wmOperator *op, wmEvent *UNUSED(event))
+{
+	if (edit_constraint_invoke_properties(C, op))
+		return objectsolver_set_inverse_exec(C, op);
+	else
+		return OPERATOR_CANCELLED;
+}
+
+void CONSTRAINT_OT_objectsolver_set_inverse (wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name= "Set Inverse";
+	ot->idname= "CONSTRAINT_OT_objectsolver_set_inverse";
+	ot->description= "Set inverse correction for ObjectSolver constraint";
+
+	ot->exec= objectsolver_set_inverse_exec;
+	ot->invoke= objectsolver_set_inverse_invoke;
+	ot->poll= edit_constraint_poll;
+
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+	edit_constraint_properties(ot);
+}
+
+static int objectsolver_clear_inverse_exec (bContext *C, wmOperator *op)
+{
+	Object *ob = ED_object_active_context(C);
+	bConstraint *con = edit_constraint_property_get(op, ob, CONSTRAINT_TYPE_OBJECTSOLVER);
+	bObjectSolverConstraint *data= (con) ? (bObjectSolverConstraint *)con->data : NULL;
+
+	if(data==NULL) {
+		BKE_report(op->reports, RPT_ERROR, "Childof constraint not found");
+		return OPERATOR_CANCELLED;
+	}
+
+	/* simply clear the matrix */
+	unit_m4(data->invmat);
+
+	WM_event_add_notifier(C, NC_OBJECT|ND_CONSTRAINT, ob);
+
+	return OPERATOR_FINISHED;
+}
+
+static int objectsolver_clear_inverse_invoke(bContext *C, wmOperator *op, wmEvent *UNUSED(event))
+{
+	if (edit_constraint_invoke_properties(C, op))
+		return objectsolver_clear_inverse_exec(C, op);
+	else
+		return OPERATOR_CANCELLED;
+}
+
+void CONSTRAINT_OT_objectsolver_clear_inverse (wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name= "Clear Inverse";
+	ot->idname= "CONSTRAINT_OT_objectsolver_clear_inverse";
+	ot->description= "Clear inverse correction for ObjectSolver constraint";
+
+	ot->exec= objectsolver_clear_inverse_exec;
+	ot->invoke= objectsolver_clear_inverse_invoke;
+	ot->poll= edit_constraint_poll;
+
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+	edit_constraint_properties(ot);
+}
+
 /***************************** BUTTONS ****************************/
 
 void ED_object_constraint_set_active(Object *ob, bConstraint *con)

source/blender/editors/object/object_intern.h

@@ -186,6 +186,8 @@ void CONSTRAINT_OT_stretchto_reset(struct wmOperatorType *ot);
 void CONSTRAINT_OT_limitdistance_reset(struct wmOperatorType *ot);
 void CONSTRAINT_OT_childof_set_inverse(struct wmOperatorType *ot);
 void CONSTRAINT_OT_childof_clear_inverse(struct wmOperatorType *ot);
+void CONSTRAINT_OT_objectsolver_set_inverse(struct wmOperatorType *ot);
+void CONSTRAINT_OT_objectsolver_clear_inverse (struct wmOperatorType *ot);
 
 /* object_vgroup.c */
 void OBJECT_OT_vertex_group_add(struct wmOperatorType *ot);

source/blender/editors/object/object_ops.c

@@ -161,6 +161,8 @@ void ED_operatortypes_object(void)
 	WM_operatortype_append(CONSTRAINT_OT_limitdistance_reset);
 	WM_operatortype_append(CONSTRAINT_OT_childof_set_inverse);
 	WM_operatortype_append(CONSTRAINT_OT_childof_clear_inverse);
+	WM_operatortype_append(CONSTRAINT_OT_objectsolver_set_inverse);
+	WM_operatortype_append(CONSTRAINT_OT_objectsolver_clear_inverse);
 
 	WM_operatortype_append(OBJECT_OT_vertex_group_add);
 	WM_operatortype_append(OBJECT_OT_vertex_group_remove);

source/blender/editors/space_clip/clip_draw.c

@@ -96,6 +96,8 @@ static void draw_movieclip_cache(SpaceClip *sc, ARegion *ar, MovieClip *clip, Sc
 	float x;
 	int *points, totseg, i, a;
 	float sfra= SFRA, efra= EFRA, framelen= ar->winx/(efra-sfra+1);
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(&clip->tracking);
+	MovieTrackingReconstruction *reconstruction= BKE_tracking_get_reconstruction(&clip->tracking);
 
 	glEnable(GL_BLEND);
 
@@ -119,8 +121,8 @@ static void draw_movieclip_cache(SpaceClip *sc, ARegion *ar, MovieClip *clip, Sc
 	}
 
 	/* track */
-	if(clip->tracking.act_track) {
+	if(act_track) {
-		MovieTrackingTrack *track= clip->tracking.act_track;
+		MovieTrackingTrack *track= act_track;
 
 		for(i= sfra, a= 0; i <= efra; i++) {
 			int framenr;
@@ -152,9 +154,9 @@ static void draw_movieclip_cache(SpaceClip *sc, ARegion *ar, MovieClip *clip, Sc
 	}
 
 	/* failed frames */
-	if(clip->tracking.reconstruction.flag&TRACKING_RECONSTRUCTED) {
+	if(reconstruction->flag&TRACKING_RECONSTRUCTED) {
-		int n= clip->tracking.reconstruction.camnr;
+		int n= reconstruction->camnr;
-		MovieReconstructedCamera *cameras= clip->tracking.reconstruction.cameras;
+		MovieReconstructedCamera *cameras= reconstruction->cameras;
 
 		glColor4ub(255, 0, 0, 96);
 
@@ -835,8 +837,9 @@ static void draw_tracking_tracks(SpaceClip *sc, ARegion *ar, MovieClip *clip,
 {
 	float x, y;
 	MovieTracking* tracking= &clip->tracking;
-	MovieTrackingMarker *marker;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
 	MovieTrackingTrack *track, *act_track;
+	MovieTrackingMarker *marker;
 	int framenr= sc->user.framenr;
 	int undistort= sc->user.render_flag&MCLIP_PROXY_RENDER_UNDISTORT;
 	float *marker_pos= NULL, *fp, *active_pos= NULL, cur_pos[2];
@@ -858,13 +861,13 @@ static void draw_tracking_tracks(SpaceClip *sc, ARegion *ar, MovieClip *clip,
 	glMultMatrixf(sc->stabmat);
 	glScalef(width, height, 0);
 
-	act_track= clip->tracking.act_track;
+	act_track= BKE_tracking_active_track(tracking);
 
 	if(sc->user.render_flag&MCLIP_PROXY_RENDER_UNDISTORT) {
 		int count= 0;
 
 		/* count */
-		track= tracking->tracks.first;
+		track= tracksbase->first;
 		while(track) {
 			if((track->flag&TRACK_HIDDEN)==0) {
 				marker= BKE_tracking_get_marker(track, framenr);
@@ -880,7 +883,7 @@ static void draw_tracking_tracks(SpaceClip *sc, ARegion *ar, MovieClip *clip,
 		if(count) {
 			marker_pos= MEM_callocN(2*sizeof(float)*count, "draw_tracking_tracks marker_pos");
 
-			track= tracking->tracks.first;
+			track= tracksbase->first;
 			fp= marker_pos;
 			while(track) {
 				if((track->flag&TRACK_HIDDEN)==0) {
@@ -902,7 +905,7 @@ static void draw_tracking_tracks(SpaceClip *sc, ARegion *ar, MovieClip *clip,
 	}
 
 	if(sc->flag&SC_SHOW_TRACK_PATH) {
-		track= tracking->tracks.first;
+		track= tracksbase->first;
 		while(track) {
 			if((track->flag&TRACK_HIDDEN)==0)
 				draw_track_path(sc, clip, track);
@@ -912,7 +915,7 @@ static void draw_tracking_tracks(SpaceClip *sc, ARegion *ar, MovieClip *clip,
 	}
 
 	/* markers outline and non-selected areas */
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	fp= marker_pos;
 	while(track) {
 		if((track->flag&TRACK_HIDDEN)==0) {
@@ -936,7 +939,7 @@ static void draw_tracking_tracks(SpaceClip *sc, ARegion *ar, MovieClip *clip,
 
 	/* selected areas only, so selection wouldn't be overlapped by
 	   non-selected areas */
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	fp= marker_pos;
 	while(track) {
 		if((track->flag&TRACK_HIDDEN)==0) {
@@ -974,15 +977,16 @@ static void draw_tracking_tracks(SpaceClip *sc, ARegion *ar, MovieClip *clip,
 	}
 
 	if(sc->flag&SC_SHOW_BUNDLES) {
+		MovieTrackingObject *object= BKE_tracking_active_object(tracking);
 		float pos[4], vec[4], mat[4][4], aspy;
 
 		glEnable(GL_POINT_SMOOTH);
 		glPointSize(3.0f);
 
 		aspy= 1.0f/clip->tracking.camera.pixel_aspect;
-		BKE_tracking_projection_matrix(tracking, framenr, width, height, mat);
+		BKE_tracking_projection_matrix(tracking, object, framenr, width, height, mat);
 
-		track= tracking->tracks.first;
+		track= tracksbase->first;
 		while(track) {
 			if((track->flag&TRACK_HIDDEN)==0 && track->flag&TRACK_HAS_BUNDLE) {
 				marker= BKE_tracking_get_marker(track, framenr);
@@ -1027,7 +1031,7 @@ static void draw_tracking_tracks(SpaceClip *sc, ARegion *ar, MovieClip *clip,
 
 	if(sc->flag&SC_SHOW_NAMES) {
 		/* scaling should be cleared before drawing texts, otherwise font would also be scaled */
-		track= tracking->tracks.first;
+		track= tracksbase->first;
 		fp= marker_pos;
 		while(track) {
 			if((track->flag&TRACK_HIDDEN)==0) {

source/blender/editors/space_clip/clip_editor.c

@@ -171,12 +171,13 @@ static int selected_boundbox(SpaceClip *sc, float min[2], float max[2])
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTrackingTrack *track;
 	int width, height, ok= 0;
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
 
 	INIT_MINMAX2(min, max);
 
 	ED_space_clip_size(sc, &width, &height);
 
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track)) {
 			MovieTrackingMarker *marker= BKE_tracking_get_marker(track, sc->user.framenr);

source/blender/editors/space_clip/clip_graph_draw.c

@@ -177,6 +177,7 @@ static void draw_tracks_curves(View2D *v2d, SpaceClip *sc)
 {
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
 	int width, height;
 	struct { MovieTrackingTrack *act_track; int sel; float xscale, yscale, hsize; } userdata;
 
@@ -188,13 +189,13 @@ static void draw_tracks_curves(View2D *v2d, SpaceClip *sc)
 	/* non-selected knot handles */
 	userdata.hsize= UI_GetThemeValuef(TH_HANDLE_VERTEX_SIZE);
 	userdata.sel= 0;
-	userdata.act_track= clip->tracking.act_track;
+	userdata.act_track= act_track;
 	UI_view2d_getscale(v2d, &userdata.xscale, &userdata.yscale);
 	clip_graph_tracking_values_iterate(sc, &userdata, tracking_segment_knot_cb, NULL, NULL);
 
 	/* draw graph lines */
 	glEnable(GL_BLEND);
-	clip_graph_tracking_values_iterate(sc, tracking->act_track, tracking_segment_point_cb, tracking_segment_start_cb, tracking_segment_end_cb);
+	clip_graph_tracking_values_iterate(sc, act_track, tracking_segment_point_cb, tracking_segment_start_cb, tracking_segment_end_cb);
 	glDisable(GL_BLEND);
 
 	/* selected knot handles on top of curves */
@@ -206,7 +207,7 @@ static void draw_frame_curves(SpaceClip *sc)
 {
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
-	MovieTrackingReconstruction *reconstruction= &tracking->reconstruction;
+	MovieTrackingReconstruction *reconstruction= BKE_tracking_get_reconstruction(tracking);
 	int i, lines= 0, prevfra= 0;
 
 	glColor3f(0.0f, 0.0f, 1.0f);

source/blender/editors/space_clip/clip_graph_ops.c

@@ -155,13 +155,14 @@ static int mouse_select_knot(bContext *C, float co[2], int extend)
 	ARegion *ar= CTX_wm_region(C);
 	View2D *v2d= &ar->v2d;
 	MovieTracking *tracking= &clip->tracking;
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
 	static const int delta= 6;
 
-	if(tracking->act_track) {
+	if(act_track) {
 		MouseSelectUserData userdata;
 
 		mouse_select_init_data(&userdata, co);
-		clip_graph_tracking_values_iterate_track(sc, tracking->act_track,
+		clip_graph_tracking_values_iterate_track(sc, act_track,
 					&userdata, find_nearest_tracking_knot_cb, NULL, NULL);
 
 		if(userdata.marker) {
@@ -191,6 +192,7 @@ static int mouse_select_curve(bContext *C, float co[2], int extend)
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
 	MouseSelectUserData userdata;
 
 	mouse_select_init_data(&userdata, co);
@@ -198,12 +200,12 @@ static int mouse_select_curve(bContext *C, float co[2], int extend)
 
 	if(userdata.track) {
 		if(extend) {
-			if(tracking->act_track==userdata.track) {
+			if(act_track==userdata.track) {
 				/* currently only single curve can be selected (selected curve represents active track) */
-				tracking->act_track= NULL;
+				act_track= NULL;
 			}
 		}
-		else if(tracking->act_track!=userdata.track) {
+		else if(act_track!=userdata.track) {
 			MovieTrackingMarker *marker;
 			SelectUserData selectdata = {SEL_DESELECT};
 
@@ -292,9 +294,11 @@ static int delete_curve_exec(bContext *C, wmOperator *UNUSED(op))
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
 
-	if(tracking->act_track)
+	if(act_track)
-		clip_delete_track(C, clip, tracking->act_track);
+		clip_delete_track(C, clip, tracksbase, act_track);
 
 	return OPERATOR_FINISHED;
 }
@@ -322,16 +326,17 @@ static int delete_knot_exec(bContext *C, wmOperator *UNUSED(op))
 	SpaceClip *sc= CTX_wm_space_clip(C);
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
 
-	if(tracking->act_track) {
+	if(act_track) {
 		int a= 0;
-		MovieTrackingTrack *track= tracking->act_track;
 
-		while(a<track->markersnr) {
+		while(a<act_track->markersnr) {
-			MovieTrackingMarker *marker= &track->markers[a];
+			MovieTrackingMarker *marker= &act_track->markers[a];
 
 			if(marker->flag&MARKER_GRAPH_SEL)
-				clip_delete_marker(C, clip, track, marker);
+				clip_delete_marker(C, clip, tracksbase, act_track, marker);
 			else
 				a++;
 		}

source/blender/editors/space_clip/clip_intern.h

@@ -92,8 +92,8 @@ void clip_graph_tracking_values_iterate(struct SpaceClip *sc, void *userdata,
 void clip_graph_tracking_iterate(struct SpaceClip *sc, void *userdata,
 			void (*func) (void *userdata, struct MovieTrackingMarker *marker));
 
-void clip_delete_track(struct bContext *C, struct MovieClip *clip, struct MovieTrackingTrack *track);
+void clip_delete_track(struct bContext *C, struct MovieClip *clip, struct ListBase *tracksbase, struct MovieTrackingTrack *track);
-void clip_delete_marker(struct bContext *C, struct MovieClip *clip, struct MovieTrackingTrack *track, struct MovieTrackingMarker *marker);
+void clip_delete_marker(struct bContext *C, struct MovieClip *clip, struct ListBase *tracksbase, struct MovieTrackingTrack *track, struct MovieTrackingMarker *marker);
 
 void clip_view_center_to_point(struct SpaceClip *sc, float x, float y);
 
@@ -124,6 +124,7 @@ void CLIP_OT_set_origin(struct wmOperatorType *ot);
 void CLIP_OT_set_floor(struct wmOperatorType *ot);
 void CLIP_OT_set_axis(struct wmOperatorType *ot);
 void CLIP_OT_set_scale(struct wmOperatorType *ot);
+void CLIP_OT_set_solution_scale(struct wmOperatorType *ot);
 
 void CLIP_OT_set_center_principal(struct wmOperatorType *ot);
 
@@ -139,6 +140,9 @@ void CLIP_OT_stabilize_2d_remove(struct wmOperatorType *ot);
 void CLIP_OT_stabilize_2d_select(struct wmOperatorType *ot);
 void CLIP_OT_stabilize_2d_set_rotation(struct wmOperatorType *ot);
 
-void CLIP_OT_clean_tracks(wmOperatorType *ot);
+void CLIP_OT_clean_tracks(struct wmOperatorType *ot);
+
+void CLIP_OT_tracking_object_new(struct wmOperatorType *ot);
+void CLIP_OT_tracking_object_remove(struct wmOperatorType *ot);
 
 #endif /* ED_CLIP_INTERN_H */

source/blender/editors/space_clip/clip_utils.c

@@ -119,9 +119,10 @@ void clip_graph_tracking_values_iterate(SpaceClip *sc, void *userdata,
 {
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
 	MovieTrackingTrack *track;
 
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track)) {
 			clip_graph_tracking_values_iterate_track(sc, track, userdata, func, segment_start, segment_end);
@@ -136,9 +137,10 @@ void clip_graph_tracking_iterate(SpaceClip *sc, void *userdata,
 {
 	MovieClip *clip= ED_space_clip(sc);
 	MovieTracking *tracking= &clip->tracking;
+	ListBase *tracksbase= BKE_tracking_get_tracks(tracking);
 	MovieTrackingTrack *track;
 
-	track= tracking->tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track)) {
 			int i;
@@ -158,14 +160,15 @@ void clip_graph_tracking_iterate(SpaceClip *sc, void *userdata,
 	}
 }
 
-void clip_delete_track(bContext *C, MovieClip *clip, MovieTrackingTrack *track)
+void clip_delete_track(bContext *C, MovieClip *clip, ListBase *tracksbase, MovieTrackingTrack *track)
 {
 	MovieTracking *tracking= &clip->tracking;
 	MovieTrackingStabilization *stab= &tracking->stabilization;
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(tracking);
 
 	int has_bundle= 0, update_stab= 0;
 
-	if(track==tracking->act_track)
+	if(track==act_track)
 		tracking->act_track= NULL;
 
 	if(track==stab->rot_track) {
@@ -179,7 +182,7 @@ void clip_delete_track(bContext *C, MovieClip *clip, MovieTrackingTrack *track)
 		has_bundle= 1;
 
 	BKE_tracking_free_track(track);
-	BLI_freelinkN(&tracking->tracks, track);
+	BLI_freelinkN(tracksbase, track);
 
 	WM_event_add_notifier(C, NC_MOVIECLIP|NA_EDITED, clip);
 
@@ -194,10 +197,10 @@ void clip_delete_track(bContext *C, MovieClip *clip, MovieTrackingTrack *track)
 		WM_event_add_notifier(C, NC_SPACE|ND_SPACE_VIEW3D, NULL);
 }
 
-void clip_delete_marker(bContext *C, MovieClip *clip, MovieTrackingTrack *track, MovieTrackingMarker *marker)
+void clip_delete_marker(bContext *C, MovieClip *clip, ListBase *tracksbase, MovieTrackingTrack *track, MovieTrackingMarker *marker)
 {
 	if(track->markersnr==1) {
-		clip_delete_track(C, clip, track);
+		clip_delete_track(C, clip, tracksbase, track);
 	}
 	else {
 		BKE_tracking_delete_marker(track, marker->framenr);

source/blender/editors/space_clip/space_clip.c

@@ -351,6 +351,7 @@ static void clip_operatortypes(void)
 	WM_operatortype_append(CLIP_OT_set_floor);
 	WM_operatortype_append(CLIP_OT_set_axis);
 	WM_operatortype_append(CLIP_OT_set_scale);
+	WM_operatortype_append(CLIP_OT_set_solution_scale);
 
 	/* detect */
 	WM_operatortype_append(CLIP_OT_detect_features);
@@ -372,6 +373,10 @@ static void clip_operatortypes(void)
 	WM_operatortype_append(CLIP_OT_graph_select);
 	WM_operatortype_append(CLIP_OT_graph_delete_curve);
 	WM_operatortype_append(CLIP_OT_graph_delete_knot);
+
+	/* object tracking */
+	WM_operatortype_append(CLIP_OT_tracking_object_new);
+	WM_operatortype_append(CLIP_OT_tracking_object_remove);
 }
 
 static void clip_keymap(struct wmKeyConfig *keyconf)

source/blender/editors/space_view3d/drawobject.c

@@ -1500,48 +1500,49 @@ static void draw_bundle_sphere(void)
 	glCallList(displist);
 }
 
-static void draw_viewport_reconstruction(Scene *scene, Base *base, View3D *v3d, MovieClip *clip, int flag)
+static void draw_viewport_object_reconstruction(Scene *scene, Base *base, View3D *v3d,
+			MovieClip *clip, MovieTrackingObject *tracking_object, int flag, int *global_track_index)
 {
 	MovieTracking *tracking= &clip->tracking;
 	MovieTrackingTrack *track;
-	float mat[4][4], imat[4][4], curcol[4];
+	float mat[4][4], imat[4][4];
 	unsigned char col[4], scol[4];
-	int bundlenr= 1;
+	int tracknr= *global_track_index;
-
+	ListBase *tracksbase= BKE_tracking_object_tracks(tracking, tracking_object);
-	if((v3d->flag2&V3D_SHOW_RECONSTRUCTION)==0)
-		return;
-
-	if(v3d->flag2&V3D_RENDER_OVERRIDE)
-		return;
-
-	glGetFloatv(GL_CURRENT_COLOR, curcol);
 
 	UI_GetThemeColor4ubv(TH_TEXT, col);
 	UI_GetThemeColor4ubv(TH_SELECT, scol);
 
 	BKE_get_tracking_mat(scene, base->object, mat);
 
-	glEnable(GL_LIGHTING);
-	glColorMaterial(GL_FRONT_AND_BACK, GL_DIFFUSE);
-	glEnable(GL_COLOR_MATERIAL);
-	glShadeModel(GL_SMOOTH);
-
-	/* current ogl matrix is translated in camera space, bundles should
-	   be rendered in world space, so camera matrix should be "removed"
-	   from current ogl matrix */
-	invert_m4_m4(imat, base->object->obmat);
-
 	glPushMatrix();
-	glMultMatrixf(imat);
-	glMultMatrixf(mat);
 
-	for ( track= tracking->tracks.first; track; track= track->next) {
+	if(tracking_object->flag & TRACKING_OBJECT_CAMERA) {
-		int selected= track->flag&SELECT || track->pat_flag&SELECT || track->search_flag&SELECT;
+		/* current ogl matrix is translated in camera space, bundles should
+		   be rendered in world space, so camera matrix should be "removed"
+		   from current ogl matrix */
+		invert_m4_m4(imat, base->object->obmat);
+
+		glMultMatrixf(imat);
+		glMultMatrixf(mat);
+	}
+	else {
+		float obmat[4][4];
+
+		BKE_tracking_get_interpolated_camera(tracking, tracking_object, scene->r.cfra, obmat);
+
+		invert_m4_m4(imat, obmat);
+		glMultMatrixf(imat);
+	}
+
+	for (track= tracksbase->first; track; track= track->next) {
+		int selected= TRACK_SELECTED(track);
+
 		if((track->flag&TRACK_HAS_BUNDLE)==0)
 			continue;
 
 		if(flag&DRAW_PICKING)
-			glLoadName(base->selcol + (bundlenr<<16));
+			glLoadName(base->selcol + (tracknr<<16));
 
 		glPushMatrix();
 			glTranslatef(track->bundle_pos[0], track->bundle_pos[1], track->bundle_pos[2]);
@@ -1549,7 +1550,6 @@ static void draw_viewport_reconstruction(Scene *scene, Base *base, View3D *v3d,
 
 			if(v3d->drawtype==OB_WIRE) {
 				glDisable(GL_LIGHTING);
-				glDepthMask(0);
 
 				if(selected) {
 					if(base==BASACT) UI_ThemeColor(TH_ACTIVE);
@@ -1561,7 +1561,6 @@ static void draw_viewport_reconstruction(Scene *scene, Base *base, View3D *v3d,
 
 				drawaxes(0.05f, v3d->bundle_drawtype);
 
-				glDepthMask(1);
 				glEnable(GL_LIGHTING);
 			} else if(v3d->drawtype>OB_WIRE) {
 				if(v3d->bundle_drawtype==OB_EMPTY_SPHERE) {
@@ -1570,7 +1569,6 @@ static void draw_viewport_reconstruction(Scene *scene, Base *base, View3D *v3d,
 						if(base==BASACT) UI_ThemeColor(TH_ACTIVE);
 						else UI_ThemeColor(TH_SELECT);
 
-						glDepthMask(0);
 						glLineWidth(2.f);
 						glDisable(GL_LIGHTING);
 						glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
@@ -1580,7 +1578,6 @@ static void draw_viewport_reconstruction(Scene *scene, Base *base, View3D *v3d,
 						glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
 						glEnable(GL_LIGHTING);
 						glLineWidth(1.f);
-						glDepthMask(1);
 					}
 
 					if(track->flag&TRACK_CUSTOMCOLOR) glColor3fv(track->color);
@@ -1589,7 +1586,6 @@ static void draw_viewport_reconstruction(Scene *scene, Base *base, View3D *v3d,
 					draw_bundle_sphere();
 				} else {
 					glDisable(GL_LIGHTING);
-					glDepthMask(0);
 
 					if(selected) {
 						if(base==BASACT) UI_ThemeColor(TH_ACTIVE);
@@ -1601,7 +1597,6 @@ static void draw_viewport_reconstruction(Scene *scene, Base *base, View3D *v3d,
 
 					drawaxes(0.05f, v3d->bundle_drawtype);
 
-					glDepthMask(1);
 					glEnable(GL_LIGHTING);
 				}
 			}
@@ -1619,32 +1614,67 @@ static void draw_viewport_reconstruction(Scene *scene, Base *base, View3D *v3d,
 			view3d_cached_text_draw_add(pos, track->name, 10, V3D_CACHE_TEXT_GLOBALSPACE, tcol);
 		}
 
-		bundlenr++;
+		tracknr++;
 	}
 
 	if((flag & DRAW_PICKING)==0) {
-		if(v3d->flag2&V3D_SHOW_CAMERAPATH && clip->tracking.reconstruction.camnr) {
+		if((v3d->flag2&V3D_SHOW_CAMERAPATH) && (tracking_object->flag&TRACKING_OBJECT_CAMERA)) {
-			int a= 0;
+			MovieTrackingReconstruction *reconstruction;
-			MovieTrackingReconstruction *reconstruction= &tracking->reconstruction;
+			reconstruction= BKE_tracking_object_reconstruction(tracking, tracking_object);
-			MovieReconstructedCamera *camera= tracking->reconstruction.cameras;
 
-			glDisable(GL_LIGHTING);
+			if(reconstruction->camnr) {
-			UI_ThemeColor(TH_CAMERA_PATH);
+				MovieReconstructedCamera *camera= reconstruction->cameras;
-			glLineWidth(2.0f);
+				int a= 0;
 
-			glBegin(GL_LINE_STRIP);
+				glDisable(GL_LIGHTING);
-				for(a= 0; a<reconstruction->camnr; a++, camera++) {
+				UI_ThemeColor(TH_CAMERA_PATH);
-					glVertex3fv(camera->mat[3]);
+				glLineWidth(2.0f);
-				}
-			glEnd();
 
-			glLineWidth(1.0f);
+				glBegin(GL_LINE_STRIP);
-			glEnable(GL_LIGHTING);
+					for(a= 0; a<reconstruction->camnr; a++, camera++) {
+						glVertex3fv(camera->mat[3]);
+					}
+					glEnd();
+
+					glLineWidth(1.0f);
+					glEnable(GL_LIGHTING);
+			}
 		}
 	}
 
 	glPopMatrix();
 
+	*global_track_index= tracknr;
+}
+
+static void draw_viewport_reconstruction(Scene *scene, Base *base, View3D *v3d, MovieClip *clip, int flag)
+{
+	MovieTracking *tracking= &clip->tracking;
+	MovieTrackingObject *tracking_object;
+	float curcol[4];
+	int global_track_index= 1;
+
+	if((v3d->flag2&V3D_SHOW_RECONSTRUCTION)==0)
+		return;
+
+	if(v3d->flag2&V3D_RENDER_OVERRIDE)
+		return;
+
+	glGetFloatv(GL_CURRENT_COLOR, curcol);
+
+	glEnable(GL_LIGHTING);
+	glColorMaterial(GL_FRONT_AND_BACK, GL_DIFFUSE);
+	glEnable(GL_COLOR_MATERIAL);
+	glShadeModel(GL_SMOOTH);
+
+	tracking_object= tracking->objects.first;
+	while(tracking_object) {
+		draw_viewport_object_reconstruction(scene, base, v3d, clip, tracking_object,
+					flag, &global_track_index);
+
+		tracking_object= tracking_object->next;
+	}
+
 	/* restore */
 	glShadeModel(GL_FLAT);
 	glDisable(GL_COLOR_MATERIAL);
@@ -6849,7 +6879,34 @@ void draw_object(Scene *scene, ARegion *ar, View3D *v3d, Base *base, int flag)
 				ListBase targets = {NULL, NULL};
 				bConstraintTarget *ct;
 				
-				if ((curcon->flag & CONSTRAINT_EXPAND) && (cti) && (cti->get_constraint_targets)) {
+				if(ELEM(cti->type, CONSTRAINT_TYPE_FOLLOWTRACK, CONSTRAINT_TYPE_OBJECTSOLVER)) {
+					/* special case for object solver and follow track constraints because they don't fill
+					   constraint targets properly (design limitation -- scene is needed for their target
+					   but it can't be accessed from get_targets callvack) */
+
+					Object *camob= NULL;
+
+					if(cti->type==CONSTRAINT_TYPE_FOLLOWTRACK) {
+						bFollowTrackConstraint *data= (bFollowTrackConstraint *)curcon->data;
+
+						camob= data->camera ? data->camera : scene->camera;
+					}
+					else if(cti->type==CONSTRAINT_TYPE_OBJECTSOLVER) {
+						bObjectSolverConstraint *data= (bObjectSolverConstraint *)curcon->data;
+
+						camob= data->camera ? data->camera : scene->camera;
+					}
+
+					if(camob) {
+						setlinestyle(3);
+						glBegin(GL_LINES);
+						glVertex3fv(camob->obmat[3]);
+						glVertex3fv(ob->obmat[3]);
+						glEnd();
+						setlinestyle(0);
+					}
+				}
+				else if ((curcon->flag & CONSTRAINT_EXPAND) && (cti) && (cti->get_constraint_targets)) {
 					cti->get_constraint_targets(curcon, &targets);
 					
 					for (ct= targets.first; ct; ct= ct->next) {

source/blender/editors/space_view3d/view3d_select.c

@@ -1320,6 +1320,25 @@ Base *ED_view3d_give_base_under_cursor(bContext *C, const int mval[2])
 	return basact;
 }
 
+static void deselect_all_tracks(MovieTracking *tracking)
+{
+	MovieTrackingObject *object;
+
+	object= tracking->objects.first;
+	while(object) {
+		ListBase *tracksbase= BKE_tracking_object_tracks(tracking, object);
+		MovieTrackingTrack *track= tracksbase->first;
+
+		while(track) {
+			BKE_tracking_deselect_track(track, TRACK_AREA_ALL);
+
+			track= track->next;
+		}
+
+		object= object->next;
+	}
+}
+
 /* mval is region coords */
 static int mouse_select(bContext *C, const int mval[2], short extend, short obcenter, short enumerate)
 {
@@ -1391,27 +1410,41 @@ static int mouse_select(bContext *C, const int mval[2], short extend, short obce
 				if(basact->object->type==OB_CAMERA) {
 					if(BASACT==basact) {
 						int i, hitresult;
-						MovieTrackingTrack *track;
+						int changed= 0;
 
 						for (i=0; i< hits; i++) {
 							hitresult= buffer[3+(i*4)];
 
 							/* if there's bundles in buffer select bundles first,
 							   so non-camera elements should be ignored in buffer */
-							if(basact->selcol != (hitresult & 0xFFFF))
+							if(basact->selcol != (hitresult & 0xFFFF)) {
 								continue;
+							}
 
 							/* index of bundle is 1<<16-based. if there's no "bone" index
 							   in hight word, this buffer value belongs to camera,. not to bundle */
 							if(buffer[4*i+3] & 0xFFFF0000) {
 								MovieClip *clip= object_get_movieclip(scene, basact->object, 0);
-								int selected;
+								MovieTracking *tracking= &clip->tracking;
-								track= BKE_tracking_indexed_track(&clip->tracking, hitresult >> 16);
+								ListBase *tracksbase;
+								MovieTrackingTrack *track;
 
-								selected= (track->flag&SELECT) || (track->pat_flag&SELECT) || (track->search_flag&SELECT);
+								track= BKE_tracking_indexed_track(&clip->tracking, hitresult >> 16, &tracksbase);
 
-								if(selected && extend)  BKE_tracking_deselect_track(track, TRACK_AREA_ALL);
+								if(TRACK_SELECTED(track) && extend) {
-								else BKE_tracking_select_track(&clip->tracking, track, TRACK_AREA_ALL, extend);
+									changed= 0;
+									BKE_tracking_deselect_track(track, TRACK_AREA_ALL);
+								}
+								else {
+									int oldsel= TRACK_SELECTED(track) ? 1 : 0;
+									if(!extend)
+										deselect_all_tracks(tracking);
+
+									BKE_tracking_select_track(tracksbase, track, TRACK_AREA_ALL, extend);
+
+									if(oldsel!=(TRACK_SELECTED(track) ? 1 : 0))
+										changed= 1;
+								}
 
 								basact->flag|= SELECT;
 								basact->object->flag= basact->flag;
@@ -1424,6 +1457,12 @@ static int mouse_select(bContext *C, const int mval[2], short extend, short obce
 								break;
 							}
 						}
+
+						if(!changed) {
+							/* fallback to regular object selection if no new bundles were selected,
+							   allows to select object parented to reconstruction object */
+							basact= mouse_select_eval_buffer(&vc, buffer, hits, mval, startbase, 0);
+						}
 					}
 				}
 				else if(ED_do_pose_selectbuffer(scene, basact, buffer, hits, extend) ) {	/* then bone is found */

source/blender/editors/space_view3d/view3d_snap.c

@@ -55,6 +55,7 @@
 #include "BKE_lattice.h"
 #include "BKE_main.h"
 #include "BKE_object.h"
+#include "BKE_scene.h"
 #include "BKE_tracking.h"
 
 #include "WM_api.h"
@@ -756,28 +757,55 @@ void VIEW3D_OT_snap_cursor_to_grid(wmOperatorType *ot)
 
 static void bundle_midpoint(Scene *scene, Object *ob, float vec[3])
 {
-	MovieTrackingTrack *track;
 	MovieClip *clip= object_get_movieclip(scene, ob, 0);
+	MovieTracking *tracking= &clip->tracking;
+	MovieTrackingObject *object= tracking->objects.first;
 	int ok= 0;
-	float min[3], max[3], mat[4][4], pos[3];
+	float min[3], max[3], mat[4][4], pos[3], cammat[4][4];
 
 	if(!clip)
 		return;
 
+	unit_m4(cammat);
+
+	if(!scene->camera)
+		scene->camera= scene_find_camera(scene);
+
+	if(scene->camera)
+		copy_m4_m4(cammat, scene->camera->obmat);
+
 	BKE_get_tracking_mat(scene, ob, mat);
 
 	INIT_MINMAX(min, max);
 
-	track= clip->tracking.tracks.first;
+	while(object) {
-	while(track) {
+		ListBase *tracksbase= BKE_tracking_object_tracks(tracking, object);
-		int selected= (track->flag&SELECT) || (track->pat_flag&SELECT) || (track->search_flag&SELECT);
+		MovieTrackingTrack *track= tracksbase->first;
-		if((track->flag&TRACK_HAS_BUNDLE) && selected) {
+		float obmat[4][4];
-			ok= 1;
+
-			mul_v3_m4v3(pos, mat, track->bundle_pos);
+		if(object->flag & TRACKING_OBJECT_CAMERA) {
-			DO_MINMAX(pos, min, max);
+			copy_m4_m4(obmat, mat);
+		}
+		else {
+			float imat[4][4];
+
+			BKE_tracking_get_interpolated_camera(tracking, object, scene->r.cfra, imat);
+			invert_m4(imat);
+
+			mult_m4_m4m4(obmat, cammat, imat);
 		}
 
-		track= track->next;
+		while(track) {
+			if((track->flag&TRACK_HAS_BUNDLE) && TRACK_SELECTED(track)) {
+				ok= 1;
+				mul_v3_m4v3(pos, obmat, track->bundle_pos);
+				DO_MINMAX(pos, min, max);
+			}
+
+			track= track->next;
+		}
+
+		object= object->next;
 	}
 
 	if(ok) {

source/blender/editors/transform/transform_conversions.c

@@ -4208,6 +4208,7 @@ static short constraints_list_needinv(TransInfo *t, ListBase *list)
 				if (con->type == CONSTRAINT_TYPE_CHILDOF) return 1;
 				if (con->type == CONSTRAINT_TYPE_FOLLOWPATH) return 1;
 				if (con->type == CONSTRAINT_TYPE_CLAMPTO) return 1;
+				if (con->type == CONSTRAINT_TYPE_OBJECTSOLVER) return 1;
 				
 					/* constraints that require this only under special conditions */
 				if (con->type == CONSTRAINT_TYPE_ROTLIKE) {
@@ -5385,6 +5386,7 @@ static void createTransTrackingData(bContext *C, TransInfo *t)
 	TransData2D *td2d;
 	SpaceClip *sc = CTX_wm_space_clip(C);
 	MovieClip *clip = ED_space_clip(sc);
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
 	MovieTrackingTrack *track;
 	MovieTrackingMarker *marker;
 	TransDataTracking *tdt;
@@ -5398,7 +5400,7 @@ static void createTransTrackingData(bContext *C, TransInfo *t)
 	/* count */
 	t->total = 0;
 
-	track = clip->tracking.tracks.first;
+	track = tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track) && (track->flag&TRACK_LOCKED)==0) {
 			marker= BKE_tracking_get_marker(track, framenr);
@@ -5425,7 +5427,7 @@ static void createTransTrackingData(bContext *C, TransInfo *t)
 	t->customFree= transDataTrackingFree;
 
 	/* create actual data */
-	track = clip->tracking.tracks.first;
+	track = tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track) && (track->flag&TRACK_LOCKED)==0) {
 			marker= BKE_tracking_get_marker(track, framenr);

source/blender/editors/transform/transform_generics.c

@@ -641,10 +641,11 @@ static void recalcData_clip(TransInfo *t)
 {
 	SpaceClip *sc= t->sa->spacedata.first;
 	MovieClip *clip= ED_space_clip(sc);
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
 	MovieTrackingTrack *track;
 	
 	if(t->state == TRANS_CANCEL) {
-		track= clip->tracking.tracks.first;
+		track= tracksbase->first;
 		while(track) {
 			if(TRACK_VIEW_SELECTED(sc, track)) {
 				MovieTrackingMarker *marker= BKE_tracking_ensure_marker(track, sc->user.framenr);
@@ -658,7 +659,7 @@ static void recalcData_clip(TransInfo *t)
 	
 	flushTransTracking(t);
 	
-	track= clip->tracking.tracks.first;
+	track= tracksbase->first;
 	while(track) {
 		if(TRACK_VIEW_SELECTED(sc, track)) {
 			if (t->mode == TFM_TRANSLATION) {

source/blender/makesdna/DNA_constraint_types.h

@@ -415,6 +415,8 @@ typedef struct bFollowTrackConstraint {
 	struct MovieClip	*clip;
 	char	track[24];
 	int		flag, pad;
+	char		object[24];
+	struct Object *camera;
 } bFollowTrackConstraint;
 
 /* Camera Solver constraints */
@@ -423,6 +425,15 @@ typedef struct bCameraSolverConstraint {
 	int		flag, pad;
 } bCameraSolverConstraint;
 
+/* Camera Solver constraints */
+typedef struct bObjectSolverConstraint {
+	struct MovieClip	*clip;
+	int		flag, pad;
+	char		object[24];
+	float		invmat[4][4];	/* parent-inverse matrix to use */
+	struct Object *camera;
+} bObjectSolverConstraint;
+
 /* ------------------------------------------ */
 
 /* bConstraint->type 
@@ -458,6 +469,7 @@ typedef enum eBConstraint_Types {
 	CONSTRAINT_TYPE_PIVOT,				/* Pivot Constraint */
 	CONSTRAINT_TYPE_FOLLOWTRACK,		/* Follow Track Constraint */
 	CONSTRAINT_TYPE_CAMERASOLVER,		/* Camera Solver Constraint */
+	CONSTRAINT_TYPE_OBJECTSOLVER,		/* Object Solver Constraint */
 	
 	/* NOTE: no constraints are allowed to be added after this */
 	NUM_CONSTRAINT_TYPES
@@ -765,6 +777,11 @@ typedef enum eCameraSolver_Flags {
 	CAMERASOLVER_ACTIVECLIP	= (1<<0)
 } eCameraSolver_Flags;
 
+/* ObjectSolver Constraint -> flag */
+typedef enum eObjectSolver_Flags {
+	OBJECTSOLVER_ACTIVECLIP	= (1<<0)
+} eObjectSolver_Flags;
+
 /* Rigid-Body Constraint */
 #define CONSTRAINT_DRAW_PIVOT 0x40
 #define 	CONSTRAINT_DISABLE_LINKED_COLLISION 0x80

source/blender/makesdna/DNA_tracking_types.h

@@ -142,7 +142,10 @@ typedef struct MovieTrackingSettings {
 
 	/* cleanup */
 	int clean_frames, clean_action;
-	float clean_error, pad;
+	float clean_error;
+
+	/* set object scale */
+	float object_distance;		/* distance between two bundles used for object scaling */
 } MovieTrackingSettings;
 
 typedef struct MovieTrackingStabilization {
@@ -172,6 +175,17 @@ typedef struct MovieTrackingReconstruction {
 	struct MovieReconstructedCamera *cameras;	/* reconstructed cameras */
 } MovieTrackingReconstruction;
 
+typedef struct MovieTrackingObject {
+	struct MovieTrackingObject *next, *prev;
+
+	char name[24];			/* Name of tracking object */
+	int flag;
+	float scale;			/* scale of object solution in amera space */
+
+	ListBase tracks;		/* list of tracks use to tracking this object */
+	MovieTrackingReconstruction reconstruction;	/* reconstruction data for this object */
+} MovieTrackingObject;
+
 typedef struct MovieTrackingStats {
 	char message[256];
 } MovieTrackingStats;
@@ -179,11 +193,14 @@ typedef struct MovieTrackingStats {
 typedef struct MovieTracking {
 	MovieTrackingSettings settings;	/* different tracking-related settings */
 	MovieTrackingCamera camera;		/* camera intrinsics */
-	ListBase tracks;				/* all tracks */
+	ListBase tracks;				/* list of tracks used for camera object */
-	MovieTrackingReconstruction reconstruction;	/* reconstruction data */
+	MovieTrackingReconstruction reconstruction;	/* reconstruction data for camera object */
 	MovieTrackingStabilization stabilization;	/* stabilization data */
 	MovieTrackingTrack *act_track;		/* active track */
 
+	ListBase objects;
+	int objectnr, tot_object;		/* index of active object and total number of objects */
+
 	MovieTrackingStats *stats;		/* statistics displaying in clip editor */
 } MovieTracking;
 
@@ -242,6 +259,9 @@ enum {
 /* MovieTrackingReconstruction->flag */
 #define TRACKING_RECONSTRUCTED	(1<<0)
 
+/* MovieTrackingObject->flag */
+#define TRACKING_OBJECT_CAMERA		(1<<0)
+
 #define TRACKING_CLEAN_SELECT			0
 #define TRACKING_CLEAN_DELETE_TRACK		1
 #define TRACKING_CLEAN_DELETE_SEGMENT	2

source/blender/makesrna/RNA_access.h

@@ -329,6 +329,7 @@ extern StructRNA RNA_MotionPath;
 extern StructRNA RNA_MotionPathVert;
 extern StructRNA RNA_MouseSensor;
 extern StructRNA RNA_MovieSequence;
+extern StructRNA RNA_MovieTrackingObject;
 extern StructRNA RNA_MulticamSequence;
 extern StructRNA RNA_MultiresModifier;
 extern StructRNA RNA_MusgraveTexture;

source/blender/makesrna/intern/rna_constraint.c

@@ -45,6 +45,7 @@
 EnumPropertyItem constraint_type_items[] ={
 	{0, "", 0, "Motion Tracking", ""},
 	{CONSTRAINT_TYPE_CAMERASOLVER, "CAMERA_SOLVER", ICON_CONSTRAINT_DATA, "Camera Solver", ""},
+	{CONSTRAINT_TYPE_OBJECTSOLVER, "OBJECT_SOLVER", ICON_CONSTRAINT_DATA, "Object Solver", ""},
 	{CONSTRAINT_TYPE_FOLLOWTRACK, "FOLLOW_TRACK", ICON_CONSTRAINT_DATA, "Follow Track", ""},
 	{0, "", 0, "Transform", ""},
 	{CONSTRAINT_TYPE_LOCLIKE, "COPY_LOCATION", ICON_CONSTRAINT_DATA, "Copy Location", ""},
@@ -163,6 +164,8 @@ static StructRNA *rna_ConstraintType_refine(struct PointerRNA *ptr)
 			return &RNA_FollowTrackConstraint;
 		case CONSTRAINT_TYPE_CAMERASOLVER:
 			return &RNA_CameraSolverConstraint;
+		case CONSTRAINT_TYPE_OBJECTSOLVER:
+			return &RNA_ObjectSolverConstraint;
 		default:
 			return &RNA_UnknownType;
 	}
@@ -327,6 +330,49 @@ static void rna_SplineIKConstraint_joint_bindings_set(PointerRNA *ptr, const flo
 	memcpy(ikData->points, values, ikData->numpoints * sizeof(float));
 }
 
+static int rna_Constraint_cameraObject_poll(PointerRNA *ptr, PointerRNA value)
+{
+	Object *ob= (Object*)value.data;
+
+	if (ob) {
+		if (ob->type == OB_CAMERA && ob != (Object*)ptr->id.data) {
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+static void rna_Constraint_followTrack_camera_set(PointerRNA *ptr, PointerRNA value)
+{
+	bConstraint *con= (bConstraint*)ptr->data;
+	bFollowTrackConstraint *data= (bFollowTrackConstraint*)con->data;
+	Object *ob= (Object*)value.data;
+
+	if (ob) {
+		if (ob->type == OB_CAMERA && ob != (Object*)ptr->id.data) {
+			data->camera= ob;
+		}
+	} else {
+		data->camera= NULL;
+	}
+}
+
+static void rna_Constraint_objectSolver_camera_set(PointerRNA *ptr, PointerRNA value)
+{
+	bConstraint *con= (bConstraint*)ptr->data;
+	bObjectSolverConstraint *data= (bObjectSolverConstraint*)con->data;
+	Object *ob= (Object*)value.data;
+
+	if (ob) {
+		if (ob->type == OB_CAMERA && ob != (Object*)ptr->id.data) {
+			data->camera= ob;
+		}
+	} else {
+		data->camera= NULL;
+	}
+}
+
 #else
 
 EnumPropertyItem constraint_distance_items[] = {
@@ -2066,6 +2112,20 @@ static void rna_def_constraint_follow_track(BlenderRNA *brna)
 	RNA_def_property_boolean_sdna(prop, NULL, "flag", FOLLOWTRACK_USE_3D_POSITION);
 	RNA_def_property_ui_text(prop, "3D Position", "Use 3D position of track to parent to");
 	RNA_def_property_update(prop, NC_OBJECT|ND_CONSTRAINT, "rna_Constraint_update");
+
+	/* object */
+	prop= RNA_def_property(srna, "object", PROP_STRING, PROP_NONE);
+	RNA_def_property_string_sdna(prop, NULL, "object");
+	RNA_def_property_ui_text(prop, "Object", "Movie tracking object to follow (if empty, camera object is used)");
+	RNA_def_property_update(prop, NC_OBJECT|ND_CONSTRAINT, "rna_Constraint_dependency_update");
+
+	/* camera */
+	prop= RNA_def_property(srna, "camera", PROP_POINTER, PROP_NONE);
+	RNA_def_property_pointer_sdna(prop, NULL, "camera");
+	RNA_def_property_ui_text(prop, "Camera", "Camera to which motion is parented (if empty active scene camera is used)");
+	RNA_def_property_flag(prop, PROP_EDITABLE);
+	RNA_def_property_update(prop, NC_OBJECT|ND_CONSTRAINT, "rna_Constraint_dependency_update");
+	RNA_def_property_pointer_funcs(prop, NULL, "rna_Constraint_followTrack_camera_set", NULL, "rna_Constraint_cameraObject_poll");
 }
 
 static void rna_def_constraint_camera_solver(BlenderRNA *brna)
@@ -2074,7 +2134,7 @@ static void rna_def_constraint_camera_solver(BlenderRNA *brna)
 	PropertyRNA *prop;
 
 	srna= RNA_def_struct(brna, "CameraSolverConstraint", "Constraint");
-	RNA_def_struct_ui_text(srna, "Follow Track Constraint", "Lock motion to the reconstructed camera movement");
+	RNA_def_struct_ui_text(srna, "Camera Solver Constraint", "Lock motion to the reconstructed camera movement");
 	RNA_def_struct_sdna_from(srna, "bCameraSolverConstraint", "data");
 
 	/* movie clip */
@@ -2091,6 +2151,43 @@ static void rna_def_constraint_camera_solver(BlenderRNA *brna)
 	RNA_def_property_update(prop, NC_OBJECT|ND_CONSTRAINT, "rna_Constraint_update");
 }
 
+static void rna_def_constraint_object_solver(BlenderRNA *brna)
+{
+	StructRNA *srna;
+	PropertyRNA *prop;
+
+	srna= RNA_def_struct(brna, "ObjectSolverConstraint", "Constraint");
+	RNA_def_struct_ui_text(srna, "Object Solver Constraint", "Lock motion to the reconstructed object movement");
+	RNA_def_struct_sdna_from(srna, "bObjectSolverConstraint", "data");
+
+	/* movie clip */
+	prop= RNA_def_property(srna, "clip", PROP_POINTER, PROP_NONE);
+	RNA_def_property_pointer_sdna(prop, NULL, "clip");
+	RNA_def_property_ui_text(prop, "Movie Clip", "Movie Clip to get tracking data from");
+	RNA_def_property_flag(prop, PROP_EDITABLE);
+	RNA_def_property_update(prop, NC_OBJECT|ND_CONSTRAINT, "rna_Constraint_dependency_update");
+
+	/* use default clip */
+	prop= RNA_def_property(srna, "use_active_clip", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "flag", CAMERASOLVER_ACTIVECLIP);
+	RNA_def_property_ui_text(prop, "Active Clip", "Use active clip defined in scene");
+	RNA_def_property_update(prop, NC_OBJECT|ND_CONSTRAINT, "rna_Constraint_update");
+
+	/* object */
+	prop= RNA_def_property(srna, "object", PROP_STRING, PROP_NONE);
+	RNA_def_property_string_sdna(prop, NULL, "object");
+	RNA_def_property_ui_text(prop, "Object", "Movie tracking object to follow");
+	RNA_def_property_update(prop, NC_OBJECT|ND_CONSTRAINT, "rna_Constraint_dependency_update");
+
+	/* camera */
+	prop= RNA_def_property(srna, "camera", PROP_POINTER, PROP_NONE);
+	RNA_def_property_pointer_sdna(prop, NULL, "camera");
+	RNA_def_property_ui_text(prop, "Camera", "Camera to which motion is parented (if empty active scene camera is used)");
+	RNA_def_property_flag(prop, PROP_EDITABLE);
+	RNA_def_property_update(prop, NC_OBJECT|ND_CONSTRAINT, "rna_Constraint_dependency_update");
+	RNA_def_property_pointer_funcs(prop, NULL, "rna_Constraint_objectSolver_camera_set", NULL, "rna_Constraint_cameraObject_poll");
+}
+
 /* base struct for constraints */
 void RNA_def_constraint(BlenderRNA *brna)
 {
@@ -2203,6 +2300,7 @@ void RNA_def_constraint(BlenderRNA *brna)
 	rna_def_constraint_pivot(brna);
 	rna_def_constraint_follow_track(brna);
 	rna_def_constraint_camera_solver(brna);
+	rna_def_constraint_object_solver(brna);
 }
 
 #endif

source/blender/makesrna/intern/rna_tracking.c

@@ -90,43 +90,87 @@ static void rna_tracking_defaultSettings_searchUpdate(Main *UNUSED(bmain), Scene
 static void rna_tracking_tracks_begin(CollectionPropertyIterator *iter, PointerRNA *ptr)
 {
 	MovieClip *clip= (MovieClip*)ptr->id.data;
+
 	rna_iterator_listbase_begin(iter, &clip->tracking.tracks, NULL);
 }
 
-static void rna_tracking_tracks_add(MovieTracking *tracking, int frame, int number)
+static void rna_tracking_objects_begin(CollectionPropertyIterator *iter, PointerRNA *ptr)
 {
-	int a;
+	MovieClip *clip= (MovieClip*)ptr->id.data;
 
-	for(a= 0; a<number; a++)
+	rna_iterator_listbase_begin(iter, &clip->tracking.objects, NULL);
-		BKE_tracking_add_track(tracking, 0, 0, frame, 1, 1);
+}
 
-	WM_main_add_notifier(NC_MOVIECLIP|NA_EDITED, NULL);
+static int rna_tracking_active_object_index_get(PointerRNA *ptr)
+{
+	MovieClip *clip= (MovieClip*)ptr->id.data;
+
+	return clip->tracking.objectnr;
+}
+
+static void rna_tracking_active_object_index_set(PointerRNA *ptr, int value)
+{
+	MovieClip *clip= (MovieClip*)ptr->id.data;
+
+	clip->tracking.objectnr= value;
+}
+
+static void rna_tracking_active_object_index_range(PointerRNA *ptr, int *min, int *max)
+{
+	MovieClip *clip= (MovieClip*)ptr->id.data;
+
+	*min= 0;
+	*max= clip->tracking.tot_object-1;
+	*max= MAX2(0, *max);
 }
 
 static PointerRNA rna_tracking_active_track_get(PointerRNA *ptr)
 {
 	MovieClip *clip= (MovieClip*)ptr->id.data;
+	MovieTrackingTrack *act_track= BKE_tracking_active_track(&clip->tracking);
 
-	return rna_pointer_inherit_refine(ptr, &RNA_MovieTrackingTrack, clip->tracking.act_track);
+	return rna_pointer_inherit_refine(ptr, &RNA_MovieTrackingTrack, act_track);
 }
 
 static void rna_tracking_active_track_set(PointerRNA *ptr, PointerRNA value)
 {
 	MovieClip *clip= (MovieClip*)ptr->id.data;
 	MovieTrackingTrack *track= (MovieTrackingTrack *)value.data;
-	int index= BLI_findindex(&clip->tracking.tracks, track);
+	ListBase *tracksbase= BKE_tracking_get_tracks(&clip->tracking);
+	int index= BLI_findindex(tracksbase, track);
 
-	if(index>=0) clip->tracking.act_track= track;
+	if(index>=0)
-	else clip->tracking.act_track= NULL;
+		clip->tracking.act_track= track;
+	else
+		clip->tracking.act_track= NULL;
 }
 
 void rna_trackingTrack_name_set(PointerRNA *ptr, const char *value)
 {
 	MovieClip *clip= (MovieClip *)ptr->id.data;
+	MovieTracking *tracking= &clip->tracking;
 	MovieTrackingTrack *track= (MovieTrackingTrack *)ptr->data;
+	ListBase *tracksbase= &tracking->tracks;
+
 	BLI_strncpy(track->name, value, sizeof(track->name));
 
-	BKE_track_unique_name(&clip->tracking, track);
+	/* TODO: it's a bit difficult to find list track came from knowing just
+	         movie clip ID and MovieTracking structure, so keep this naive
+			 search for a while */
+	if(BLI_findindex(tracksbase, track) < 0) {
+		MovieTrackingObject *object= tracking->objects.first;
+
+		while(object) {
+			if(BLI_findindex(&object->tracks, track)) {
+				tracksbase= &object->tracks;
+				break;
+			}
+
+			object= object->next;
+		}
+	}
+
+	BKE_track_unique_name(tracksbase, track);
 }
 
 static int rna_trackingTrack_select_get(PointerRNA *ptr)
@@ -257,8 +301,102 @@ static void rna_tracking_flushUpdate(Main *UNUSED(bmain), Scene *scene, PointerR
 	DAG_id_tag_update(&clip->id, 0);
 }
 
+static void rna_trackingObject_tracks_begin(CollectionPropertyIterator *iter, PointerRNA *ptr)
+{
+	MovieTrackingObject *object= (MovieTrackingObject* )ptr->data;
+
+	rna_iterator_listbase_begin(iter, &object->tracks, NULL);
+}
+
+static PointerRNA rna_tracking_active_object_get(PointerRNA *ptr)
+{
+	MovieClip *clip= (MovieClip*)ptr->id.data;
+	MovieTrackingObject *object= BLI_findlink(&clip->tracking.objects, clip->tracking.objectnr);
+
+	return rna_pointer_inherit_refine(ptr, &RNA_MovieTrackingObject, object);
+}
+
+static void rna_tracking_active_object_set(PointerRNA *ptr, PointerRNA value)
+{
+	MovieClip *clip= (MovieClip*)ptr->id.data;
+	MovieTrackingObject *object= (MovieTrackingObject *)value.data;
+	int index= BLI_findindex(&clip->tracking.objects, object);
+
+	if(index>=0) clip->tracking.objectnr= index;
+	else clip->tracking.objectnr= 0;
+}
+
+void rna_trackingObject_name_set(PointerRNA *ptr, const char *value)
+{
+	MovieClip *clip= (MovieClip *)ptr->id.data;
+	MovieTrackingObject *object= (MovieTrackingObject *)ptr->data;
+
+	BLI_strncpy(object->name, value, sizeof(object->name));
+
+	BKE_tracking_object_unique_name(&clip->tracking, object);
+}
+
+static void rna_trackingObject_flushUpdate(Main *UNUSED(bmain), Scene *scene, PointerRNA *ptr)
+{
+	MovieClip *clip= (MovieClip*)ptr->id.data;
+
+	WM_main_add_notifier(NC_OBJECT|ND_TRANSFORM, NULL);
+	DAG_id_tag_update(&clip->id, 0);
+}
+
 /* API */
 
+static void add_tracks_to_base(MovieClip *clip, MovieTracking *tracking, ListBase *tracksbase, int frame, int number)
+{
+	int a, width, height;
+	MovieClipUser user= {0};
+
+	user.framenr= 1;
+
+	BKE_movieclip_get_size(clip, &user, &width, &height);
+
+	for(a= 0; a<number; a++)
+		BKE_tracking_add_track(tracking, tracksbase, 0, 0, frame, width, height);
+}
+
+static void rna_tracking_tracks_add(ID *id, MovieTracking *tracking, int frame, int number)
+{
+	MovieClip *clip= (MovieClip *) id;
+
+	add_tracks_to_base(clip, tracking, &tracking->tracks, frame, number);
+
+	WM_main_add_notifier(NC_MOVIECLIP|NA_EDITED, NULL);
+}
+
+static void rna_trackingObject_tracks_add(ID *id, MovieTrackingObject *object, int frame, int number)
+{
+	MovieClip *clip= (MovieClip *) id;
+	ListBase *tracksbase= &object->tracks;
+
+	if(object->flag&TRACKING_OBJECT_CAMERA)
+		tracksbase= &clip->tracking.tracks;
+
+	add_tracks_to_base(clip, &clip->tracking, tracksbase, frame, number);
+
+	WM_main_add_notifier(NC_MOVIECLIP|NA_EDITED, NULL);
+}
+
+static MovieTrackingObject *rna_tracking_object_new(MovieTracking *tracking, const char *name)
+{
+	MovieTrackingObject *object= BKE_tracking_new_object(tracking, name);
+
+	WM_main_add_notifier(NC_MOVIECLIP|NA_EDITED, NULL);
+
+	return object;
+}
+
+void rna_tracking_object_remove(MovieTracking *tracking, MovieTrackingObject *object)
+{
+	BKE_tracking_remove_object(tracking, object);
+
+	WM_main_add_notifier(NC_MOVIECLIP|NA_EDITED, NULL);
+}
+
 static MovieTrackingMarker *rna_trackingTrack_marker_find_frame(MovieTrackingTrack *track, int framenr)
 {
 	return BKE_tracking_get_marker(track, framenr);
@@ -442,6 +580,14 @@ static void rna_def_trackingSettings(BlenderRNA *brna)
 	RNA_def_property_range(prop, 5, 1000);
 	RNA_def_property_update(prop, 0, "rna_tracking_defaultSettings_searchUpdate");
 	RNA_def_property_ui_text(prop, "Search Size", "Size of search area for newly created tracks");
+
+	/* object distance */
+	prop= RNA_def_property(srna, "object_distance", PROP_FLOAT, PROP_NONE);
+	RNA_def_property_clear_flag(prop, PROP_ANIMATABLE);
+	RNA_def_property_float_sdna(prop, NULL, "object_distance");
+	RNA_def_property_ui_text(prop, "Distance", "Distance between two bundles used for object scaling");
+	RNA_def_property_range(prop, 0.001, 10000);
+	RNA_def_property_ui_range(prop, 0.001, 10000.0, 1, 3);
 }
 
 static void rna_def_trackingCamera(BlenderRNA *brna)
@@ -889,18 +1035,18 @@ static void rna_def_trackingReconstruction(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Cameras", "Collection of solved cameras");
 }
 
-static void rna_def_trackingTracks(BlenderRNA *brna, PropertyRNA *cprop)
+static void rna_def_trackingTracks(BlenderRNA *brna)
 {
 	StructRNA *srna;
 	FunctionRNA *func;
 	PropertyRNA *prop;
 
-	RNA_def_property_srna(cprop, "MovieTrackingTracks");
 	srna= RNA_def_struct(brna, "MovieTrackingTracks", NULL);
 	RNA_def_struct_sdna(srna, "MovieTracking");
 	RNA_def_struct_ui_text(srna, "Movie Tracks", "Collection of movie tracking tracks");
 
 	func= RNA_def_function(srna, "add", "rna_tracking_tracks_add");
+	RNA_def_function_flag(func, FUNC_USE_SELF_ID);
 	RNA_def_function_ui_description(func, "Add a number of tracks to this movie clip");
 	RNA_def_int(func, "frame", 1, MINFRAME, MAXFRAME, "Frame", "Frame number to add tracks on", MINFRAME, MAXFRAME);
 	RNA_def_int(func, "count", 1, 0, INT_MAX, "Number", "Number of tracks to add to the movie clip", 0, INT_MAX);
@@ -913,6 +1059,105 @@ static void rna_def_trackingTracks(BlenderRNA *brna, PropertyRNA *cprop)
 	RNA_def_property_ui_text(prop, "Active Track", "Active track in this tracking data object");
 }
 
+static void rna_def_trackingObjectTracks(BlenderRNA *brna)
+{
+	StructRNA *srna;
+	FunctionRNA *func;
+	PropertyRNA *prop;
+
+	srna= RNA_def_struct(brna, "MovieTrackingObjectTracks", NULL);
+	RNA_def_struct_sdna(srna, "MovieTrackingObject");
+	RNA_def_struct_ui_text(srna, "Movie Tracks", "Collection of movie tracking tracks");
+
+	func= RNA_def_function(srna, "add", "rna_trackingObject_tracks_add");
+	RNA_def_function_flag(func, FUNC_USE_SELF_ID);
+	RNA_def_function_ui_description(func, "Add a number of tracks to this movie clip");
+	RNA_def_int(func, "frame", 1, MINFRAME, MAXFRAME, "Frame", "Frame number to add tracks on", MINFRAME, MAXFRAME);
+	RNA_def_int(func, "count", 1, 0, INT_MAX, "Number", "Number of tracks to add to the movie clip", 0, INT_MAX);
+
+	/* active track */
+	prop= RNA_def_property(srna, "active", PROP_POINTER, PROP_NONE);
+	RNA_def_property_struct_type(prop, "MovieTrackingTrack");
+	RNA_def_property_pointer_funcs(prop, "rna_tracking_active_track_get", "rna_tracking_active_track_set", NULL, NULL);
+	RNA_def_property_flag(prop, PROP_EDITABLE|PROP_NEVER_UNLINK);
+	RNA_def_property_ui_text(prop, "Active Track", "Active track in this tracking data object");
+}
+
+static void rna_def_trackingObject(BlenderRNA *brna)
+{
+	StructRNA *srna;
+	PropertyRNA *prop;
+
+	srna= RNA_def_struct(brna, "MovieTrackingObject", NULL);
+	RNA_def_struct_ui_text(srna, "Movie tracking object data", "Match-moving object tracking and reconstruction data");
+
+	/* name */
+	prop= RNA_def_property(srna, "name", PROP_STRING, PROP_NONE);
+	RNA_def_property_ui_text(prop, "Name", "Unique name of object");
+	RNA_def_property_string_funcs(prop, NULL, NULL, "rna_trackingObject_name_set");
+	RNA_def_property_string_maxlength(prop, MAX_ID_NAME);
+	RNA_def_property_update(prop, NC_MOVIECLIP|NA_EDITED, NULL);
+	RNA_def_struct_name_property(srna, prop);
+
+	/* is_camera */
+	prop= RNA_def_property(srna, "is_camera", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_clear_flag(prop, PROP_EDITABLE);
+	RNA_def_property_boolean_sdna(prop, NULL, "flag", TRACKING_OBJECT_CAMERA);
+	RNA_def_property_ui_text(prop, "Camera", "Object is used for camera tracking");
+	RNA_def_property_update(prop, NC_MOVIECLIP|ND_DISPLAY, NULL);
+
+	/* tracks */
+	prop= RNA_def_property(srna, "tracks", PROP_COLLECTION, PROP_NONE);
+	RNA_def_property_collection_funcs(prop, "rna_trackingObject_tracks_begin", "rna_iterator_listbase_next", "rna_iterator_listbase_end", "rna_iterator_listbase_get", 0, 0, 0, 0);
+	RNA_def_property_struct_type(prop, "MovieTrackingTrack");
+	RNA_def_property_ui_text(prop, "Tracks", "Collection of tracks in this tracking data object");
+	RNA_def_property_srna(prop, "MovieTrackingObjectTracks");
+
+	/* reconstruction */
+	prop= RNA_def_property(srna, "reconstruction", PROP_POINTER, PROP_NONE);
+	RNA_def_property_struct_type(prop, "MovieTrackingReconstruction");
+
+	/* scale */
+	prop= RNA_def_property(srna, "scale", PROP_FLOAT, PROP_NONE);
+	RNA_def_property_clear_flag(prop, PROP_ANIMATABLE);
+	RNA_def_property_float_sdna(prop, NULL, "scale");
+	RNA_def_property_range(prop, 0.0001f, 10000.0f);
+	RNA_def_property_ui_range(prop, 0.0001f, 10000.0, 1, 4);
+	RNA_def_property_ui_text(prop, "Scale", "Scale of object solution in camera space");
+	RNA_def_property_update(prop, NC_MOVIECLIP|NA_EDITED, "rna_trackingObject_flushUpdate");
+}
+
+static void rna_def_trackingObjects(BlenderRNA *brna, PropertyRNA *cprop)
+{
+	StructRNA *srna;
+	PropertyRNA *prop;
+
+	FunctionRNA *func;
+	PropertyRNA *parm;
+
+	RNA_def_property_srna(cprop, "MovieTrackingObjects");
+	srna= RNA_def_struct(brna, "MovieTrackingObjects", NULL);
+	RNA_def_struct_sdna(srna, "MovieTracking");
+	RNA_def_struct_ui_text(srna, "Movie Objects", "Collection of movie trackingobjects");
+
+	func= RNA_def_function(srna, "new", "rna_tracking_object_new");
+	RNA_def_function_ui_description(func, "Add tracking object to this movie clip");
+	RNA_def_string(func, "name", "", 0, "", "Name of new object");
+	parm= RNA_def_pointer(func, "object", "MovieTrackingObject", "", "New motion tracking object");
+	RNA_def_function_return(func, parm);
+
+	func= RNA_def_function(srna, "remove", "rna_tracking_object_remove");
+	RNA_def_function_ui_description(func, "Remove tracking object from this movie clip");
+	parm= RNA_def_pointer(func, "object", "MovieTrackingObject", "", "Motion tracking object to be removed");
+
+	/* active object */
+	prop= RNA_def_property(srna, "active", PROP_POINTER, PROP_NONE);
+	RNA_def_property_struct_type(prop, "MovieTrackingObject");
+	RNA_def_property_pointer_funcs(prop, "rna_tracking_active_object_get", "rna_tracking_active_object_set", NULL, NULL);
+	RNA_def_property_flag(prop, PROP_EDITABLE|PROP_NEVER_UNLINK);
+	RNA_def_property_ui_text(prop, "Active Object", "Active object in this tracking data object");
+}
+
 static void rna_def_tracking(BlenderRNA *brna)
 {
 	StructRNA *srna;
@@ -921,8 +1166,11 @@ static void rna_def_tracking(BlenderRNA *brna)
 	rna_def_trackingSettings(brna);
 	rna_def_trackingCamera(brna);
 	rna_def_trackingTrack(brna);
+	rna_def_trackingTracks(brna);
+	rna_def_trackingObjectTracks(brna);
 	rna_def_trackingStabilization(brna);
 	rna_def_trackingReconstruction(brna);
+	rna_def_trackingObject(brna);
 
 	srna= RNA_def_struct(brna, "MovieTracking", NULL);
 	RNA_def_struct_ui_text(srna, "Movie tracking data", "Match-moving data for tracking");
@@ -940,7 +1188,7 @@ static void rna_def_tracking(BlenderRNA *brna)
 	RNA_def_property_collection_funcs(prop, "rna_tracking_tracks_begin", "rna_iterator_listbase_next", "rna_iterator_listbase_end", "rna_iterator_listbase_get", 0, 0, 0, 0);
 	RNA_def_property_struct_type(prop, "MovieTrackingTrack");
 	RNA_def_property_ui_text(prop, "Tracks", "Collection of tracks in this tracking data object");
-	rna_def_trackingTracks(brna, prop);
+	RNA_def_property_srna(prop, "MovieTrackingTracks");
 
 	/* stabilization */
 	prop= RNA_def_property(srna, "stabilization", PROP_POINTER, PROP_NONE);
@@ -949,6 +1197,20 @@ static void rna_def_tracking(BlenderRNA *brna)
 	/* reconstruction */
 	prop= RNA_def_property(srna, "reconstruction", PROP_POINTER, PROP_NONE);
 	RNA_def_property_struct_type(prop, "MovieTrackingReconstruction");
+
+	/* objects */
+	prop= RNA_def_property(srna, "objects", PROP_COLLECTION, PROP_NONE);
+	RNA_def_property_collection_funcs(prop, "rna_tracking_objects_begin", "rna_iterator_listbase_next", "rna_iterator_listbase_end", "rna_iterator_listbase_get", 0, 0, 0, 0);
+	RNA_def_property_struct_type(prop, "MovieTrackingObject");
+	RNA_def_property_ui_text(prop, "Objects", "Collection of objects in this tracking data object");
+	rna_def_trackingObjects(brna, prop);
+
+	/* active object index */
+	prop= RNA_def_property(srna, "active_object_index", PROP_INT, PROP_NONE);
+	RNA_def_property_int_sdna(prop, NULL, "objectnr");
+	RNA_def_property_int_funcs(prop, "rna_tracking_active_object_index_get", "rna_tracking_active_object_index_set", "rna_tracking_active_object_index_range");
+	RNA_def_property_ui_text(prop, "Active Object Index", "Index of active object");
+	RNA_def_property_update(prop, NC_MOVIECLIP|ND_DISPLAY, NULL);
 }
 
 void RNA_def_tracking(BlenderRNA *brna)