Added copy_applied method on Mesh objects. Uses DerivedMesh funcs to

get a mesh with all modifiers applied.

release/io/export_obj.py

@@ -1,4 +1,3 @@
-
 import bpy
 
 class SCRIPT_OT_export_obj(bpy.types.Operator):
@@ -8,24 +7,40 @@ class SCRIPT_OT_export_obj(bpy.types.Operator):
 	# List of operator properties, the attributes will be assigned
 	# to the class instance from the operator settings before calling.
 	__props__ = [
-        bpy.props["StringProperty"](attr="filename", name="filename", default="/tmp")
+		bpy.props["StringProperty"](attr="filename", name="filename")
-#		FloatProperty(attr="setting_1", name="Example 1", default=10.0, min=0, max=10, description="Add info here"),
-#		StringProperty(attr="filename")
 		]
 
 	def debug(self, message):
 		print("{0}: {1}".format(self.__class__.__name__, message))
 
 	def exec(self, context):
-#		print(self.setting_1)
 		self.debug("exec")
 		self.debug("filename = " + self.filename)
+
+		self.debug("num selected objects: {0}".format(len(context.selected_objects)))
+
+		ob = bpy.data.objects["Cube"]
+		o = ob.data
+
+		m = bpy.data.add_mesh("tmpmesh")
+		m.copy_applied(context.scene, ob, True)
+
+		def vert(co):
+			return "{0}, {1}, {2}".format(co[0], co[1], co[2])
+
+		print("	  orig: {0} with totverts={1}".format(vert(o.verts[0].co), len(o.verts)))
+		print("applied: {0} with totverts={1}".format(vert(m.verts[0].co), len(m.verts)))
+
+		# XXX errors are silenced for some reason
+#		raise Exception("oops!")
+
 		return ('FINISHED',)
 	
 	def invoke(self, context, event):
 		self.debug("invoke")
-		context.add_fileselect(self.__operator__)
+#		context.add_fileselect(self.__operator__)
-		return ('RUNNING_MODAL',) #self.exec(context)
+#		return ('RUNNING_MODAL',)
+		return self.exec(context)
 	
 	def poll(self, context): # poll isnt working yet
 		self.debug("poll")

source/blender/editors/mesh/editmesh.c

@@ -2041,6 +2041,16 @@ void RNA_api_mesh_copy(Mesh *me, Mesh *from)
 	copy_mesh_data(me, from);
 }
 
+void RNA_api_mesh_copy_applied(Mesh *me, Scene *sce, Object *ob, int apply_obmat)
+{
+	DerivedMesh *dm= mesh_create_derived_view(sce, ob, CD_MASK_MESH);
+	DM_to_mesh(dm, me);
+	dm->release(dm);
+
+	if (apply_obmat) {
+	}
+}
+
 void RNA_api_mesh_transform(Mesh *me, float **mat)
 {
 }
@@ -2048,6 +2058,8 @@ void RNA_api_mesh_transform(Mesh *me, float **mat)
 /*
  * This version of copy_mesh doesn't allocate a new mesh,
  * instead it copies data between two existing meshes.
+ *
+ * XXX is this already possible with DerivedMesh?
  */
 void copy_mesh_data(Mesh *dest, Mesh *src)
 {
@@ -2078,47 +2090,3 @@ void copy_mesh_data(Mesh *dest, Mesh *src)
 
 	mesh_update_customdata_pointers(dest);
 }
-
-/*
-void RNA_api_mesh_apply_transform(Mesh *me)
-{
-	
-}
-*/
-
-/*
-void RNA_api_mesh_copy_(Mesh *me, Object *ob, int apply_transform)
-{
-	if (ob->type != OB_MESH) {
-		return;
-	}
-
-	Mesh *src= (Mesh*)ob->data;
-
-	CustomData_free(&me->vdata, me->totvert);
-	CustomData_free(&me->edata, me->totedge);
-	CustomData_free(&me->fdata, me->totface);
-
-	CustomData_copy(&src->vdata, &me->vdata, CD_MASK_MESH, CD_DUPLICATE, me->totvert);
-	CustomData_copy(&src->edata, &me->edata, CD_MASK_MESH, CD_DUPLICATE, me->totedge);
-	CustomData_copy(&src->fdata, &me->fdata, CD_MASK_MESH, CD_DUPLICATE, me->totface);
-	mesh_update_customdata_pointers(me);
-
-	// ensure indirect linked data becomes lib-extern
-	for(i=0; i<src->fdata.totlayer; i++) {
-		if(src->fdata.layers[i].type == CD_MTFACE) {
-			tface= (MTFace*)src->fdata.layers[i].data;
-
-			for(a=0; a<src->totface; a++, tface++)
-				if(tface->tpage)
-					id_lib_extern((ID*)tface->tpage);
-		}
-	}
-	
-	me->mselect= NULL;
-	me->bb= src->bb;
-
-	//men->key= copy_key(me->key);
-	//if(men->key) men->key->from= (ID *)men;
-}
-*/

source/blender/makesrna/intern/rna_internal.h

@@ -188,9 +188,15 @@ void rna_object_vcollayer_name_set(struct PointerRNA *ptr, const char *value, ch
 
 /* API functions */
 
+struct Main;
+struct Scene;
+struct Object;
+struct Mesh;
+
 void RNA_api_ui_layout(struct StructRNA *srna);
 struct Mesh *RNA_api_add_mesh(struct Main *main, char *name);
 void RNA_api_mesh_copy(struct Mesh *me, struct Mesh *from);
+void RNA_api_mesh_copy_applied(struct Mesh *me, struct Scene *sce, struct Object *ob, int apply_obmat);
 
 /* ID Properties */
 

source/blender/makesrna/intern/rna_mesh.c

@@ -1132,10 +1132,14 @@ static void rna_def_mesh(BlenderRNA *brna)
 	RNA_def_function_ui_description(func, "Copy mesh data.");
 	prop= RNA_def_pointer(func, "src", "Mesh", "", "A mesh to copy data from.");
 	RNA_def_property_flag(prop, PROP_REQUIRED);
-	/*
+
-	prop= RNA_def_pointer(func, "mesh", "Mesh", "", "A new mesh.");
+	func= RNA_def_function(srna, "copy_applied", "RNA_api_mesh_copy_applied");
-	RNA_def_function_return(func, prop);
+	RNA_def_function_ui_description(func, "Copy mesh data from object with all modifiers and transformations applied.");
-	*/
+	prop= RNA_def_pointer(func, "sce", "Scene", "", "Scene.");
+	RNA_def_property_flag(prop, PROP_REQUIRED);
+	prop= RNA_def_pointer(func, "ob", "Object", "", "Object to copy data from.");
+	RNA_def_property_flag(prop, PROP_REQUIRED);
+	RNA_def_boolean(func, "apply_obmat", 1, "", "Apply object matrix.");
 }
 
 void RNA_def_mesh(BlenderRNA *brna)