Collada: patch #31331: Implementation of 'Apply Modifiers'

source/blender/collada/ExportSettings.h

@@ -31,6 +31,7 @@ struct ExportSettings
 {
  public:
  bool selected;
+ bool apply_modifiers;
  bool second_life;
  char *filepath;
 };

source/blender/collada/GeometryExporter.cpp

@@ -36,10 +36,18 @@
 #include "GeometryExporter.h"
 
 #include "DNA_meshdata_types.h"
+
+extern "C" {
+    #include "BKE_DerivedMesh.h"
+	#include "BKE_main.h"
+	#include "BKE_global.h"
+	#include "BKE_library.h"
+}
+
+
 #include "BKE_customdata.h"
 #include "BKE_material.h"
 #include "BKE_mesh.h"
-
 #include "collada_internal.h"
 
 // TODO: optimize UV sets by making indexed list with duplicates removed
@@ -57,6 +65,25 @@ void GeometryExporter::exportGeom(Scene *sce)
 	closeLibrary();
 }
 
+Mesh * GeometryExporter::get_mesh(Object *ob, int apply_modifiers)
+{
+	Mesh *tmpmesh;
+	if (!apply_modifiers)
+	{
+		tmpmesh = (Mesh*)ob->data;
+	}
+	else
+	{
+		CustomDataMask mask = CD_MASK_MESH;
+		DerivedMesh *dm     = mesh_create_derived_view(mScene, ob, mask);
+		tmpmesh             = BKE_mesh_add("ColladaMesh"); // name is not important here
+		DM_to_mesh(dm, tmpmesh, ob);
+		dm->release(dm);
+		BKE_mesh_tessface_ensure(tmpmesh);
+	}
+	return tmpmesh;
+}
+
 void GeometryExporter::operator()(Object *ob)
 {
 	// XXX don't use DerivedMesh, Mesh instead?
@@ -64,8 +91,8 @@ void GeometryExporter::operator()(Object *ob)
 #if 0		
 	DerivedMesh *dm = mesh_get_derived_final(mScene, ob, CD_MASK_BAREMESH);
 #endif
-	Mesh *me = (Mesh*)ob->data;
+
-	BKE_mesh_tessface_ensure(me);
+	Mesh *me = get_mesh(ob, this->export_settings->apply_modifiers);
 
 	std::string geom_id = get_geometry_id(ob);
 	std::string geom_name = id_name(ob->data);
@@ -110,11 +137,11 @@ void GeometryExporter::operator()(Object *ob)
 	// XXX slow		
 	if (ob->totcol) {
 		for (int a = 0; a < ob->totcol; a++)	{
-			createPolylist(a, has_uvs, has_color, ob, geom_id, norind);
+			createPolylist(a, has_uvs, has_color, ob, me, geom_id, norind);
 		}
 	}
 	else {
-		createPolylist(0, has_uvs, has_color, ob, geom_id, norind);
+		createPolylist(0, has_uvs, has_color, ob, me, geom_id, norind);
 	}
 	
 	closeMesh();
@@ -124,7 +151,12 @@ void GeometryExporter::operator()(Object *ob)
 	}
 	
 	closeGeometry();
-	
+
+	if (this->export_settings->apply_modifiers)
+	{
+		BKE_libblock_free_us(&(G.main->mesh), me);
+	}
+
 #if 0
 	dm->release(dm);
 #endif
@@ -135,10 +167,10 @@ void GeometryExporter::createPolylist(short material_index,
 					bool has_uvs,
 					bool has_color,
 					Object *ob,
+					Mesh *me,
 					std::string& geom_id,
 					std::vector<Face>& norind)
 {
-	Mesh *me = (Mesh*)ob->data;
 	MFace *mfaces = me->mface;
 	int totfaces = me->totface;
 

source/blender/collada/GeometryExporter.h

@@ -69,6 +69,7 @@ public:
 						bool has_uvs,
 						bool has_color,
 						Object *ob,
+						Mesh   *me,
 						std::string& geom_id,
 						std::vector<Face>& norind);
 	
@@ -98,6 +99,8 @@ private:
 	std::set<std::string> exportedGeometry;
 	
 	const ExportSettings *export_settings;
+
+	Mesh * get_mesh(Object *ob, int apply_modifiers);
 };
 
 struct GeometryFunctor {

source/blender/collada/collada.cpp

@@ -49,13 +49,14 @@ extern "C"
 		return 0;
 	}
 
-	int collada_export(Scene *sce, const char *filepath, int selected, int second_life)
+	int collada_export(Scene *sce, const char *filepath, int selected, int apply_modifiers, int second_life)
 	{
 		ExportSettings export_settings;
 		
-		export_settings.selected = selected != 0;
+		export_settings.selected        = selected != 0;
-		export_settings.second_life = second_life != 0;
+		export_settings.apply_modifiers = apply_modifiers != 0;
-		export_settings.filepath = (char *)filepath;
+		export_settings.second_life     = second_life != 0;
+		export_settings.filepath        = (char *)filepath;
 
 		/* annoying, collada crashes if file cant be created! [#27162] */
 		if (!BLI_exists(filepath)) {

source/blender/collada/collada.h

@@ -37,7 +37,7 @@ extern "C" {
 	 * both return 1 on success, 0 on error
 	 */
 	int collada_import(bContext *C, const char *filepath);
-	int collada_export(Scene *sce, const char *filepath, int selected, int second_life);
+	int collada_export(Scene *sce, const char *filepath, int selected, int apply_modifiers, int second_life);
 #ifdef __cplusplus
 }
 #endif

source/blender/makesrna/intern/rna_scene_api.c

@@ -85,9 +85,9 @@ static void rna_SceneRender_get_frame_path(RenderData *rd, int frame, char *name
 /* don't remove this, as COLLADA exporting cannot be done through operators in render() callback. */
 #include "../../collada/collada.h"
 
-static void rna_Scene_collada_export(Scene *scene, const char *filepath, int selected, int second_life)
+static void rna_Scene_collada_export(Scene *scene, const char *filepath, int selected, int apply_modifiers, int second_life)
 {
-	collada_export(scene, filepath, selected, second_life);
+	collada_export(scene, filepath, selected, apply_modifiers, second_life);
 }
 
 #endif
@@ -115,7 +115,8 @@ void RNA_api_scene(StructRNA *srna)
 	parm = RNA_def_string(func, "filepath", "", FILE_MAX, "File Path", "File path to write Collada file");
 	RNA_def_property_flag(parm, PROP_REQUIRED);
 	RNA_def_property_subtype(parm, PROP_FILEPATH); /* allow non utf8 */
-	parm = RNA_def_boolean(func, "selected", 0, "Export only selected", "Export only selected elements");
+	parm = RNA_def_boolean(func, "selected", 0, "Selection Only", "Export only selected elements");
+	parm = RNA_def_boolean(func, "apply_modifiers", 0, "Apply Modifiers", "Apply modifiers (in Preview resolution)");
 	parm = RNA_def_boolean(func, "second_life", 0, "Export for Second Life", "Compatibility mode for Second Life");
 	RNA_def_function_ui_description(func, "Export to collada file");
 #endif

source/blender/windowmanager/intern/wm_operators.c

@@ -2154,7 +2154,7 @@ static int wm_collada_export_invoke(bContext *C, wmOperator *op, wmEvent *UNUSED
 static int wm_collada_export_exec(bContext *C, wmOperator *op)
 {
 	char filename[FILE_MAX];
-	int selected, second_life;
+	int selected, second_life, apply_modifiers;
 	
 	if (!RNA_struct_property_is_set(op->ptr, "filepath")) {
 		BKE_report(op->reports, RPT_ERROR, "No filename given");
@@ -2162,13 +2162,16 @@ static int wm_collada_export_exec(bContext *C, wmOperator *op)
 	}
 
 	RNA_string_get(op->ptr, "filepath", filename);
-	selected = RNA_boolean_get(op->ptr, "selected");
+
-	second_life = RNA_boolean_get(op->ptr, "second_life");
+	/* Options panel */
+	selected        = RNA_boolean_get(op->ptr, "selected");
+	second_life     = RNA_boolean_get(op->ptr, "second_life");
+	apply_modifiers = RNA_boolean_get(op->ptr, "apply_modifiers");
 
 	/* get editmode results */
 	ED_object_exit_editmode(C, 0);  /* 0 = does not exit editmode */
 
-	if (collada_export(CTX_data_scene(C), filename, selected, second_life)) {
+	if (collada_export(CTX_data_scene(C), filename, selected, apply_modifiers, second_life)) {
 		return OPERATOR_FINISHED;
 	}
 	else {
@@ -2187,8 +2190,10 @@ static void WM_OT_collada_export(wmOperatorType *ot)
 	ot->poll = WM_operator_winactive;
 	
 	WM_operator_properties_filesel(ot, FOLDERFILE | COLLADAFILE, FILE_BLENDER, FILE_SAVE, WM_FILESEL_FILEPATH, FILE_DEFAULTDISPLAY);
-	RNA_def_boolean(ot->srna, "selected", 0, "Export only selected",
+	RNA_def_boolean(ot->srna, "selected", 0, "Selection Only",
 	                "Export only selected elements");
+	RNA_def_boolean(ot->srna, "apply_modifiers", 0, "Apply Modifiers",
+	                "Apply modifiers (Preview Resolution)");
 	RNA_def_boolean(ot->srna, "second_life", 0, "Export for Second Life",
 	                "Compatibility mode for Second Life");
 }