svn merge ^/trunk/blender -r42761:42776

2 files changed, 14 insertions, 1 deletions

diff --git a/source/blender/blenkernel/BKE_modifier.h b/source/blender/blenkernel/BKE_modifier.h
index 3063d9bc40a..d6c48fcb458 100644
--- a/source/blender/blenkernel/BKE_modifier.h
+++ b/source/blender/blenkernel/BKE_modifier.h
@@ -66,6 +66,11 @@ typedef enum {
 	 * unless it's a mesh and can be exploded -> curve can also emit particles
 	 */
 	eModifierTypeType_DeformOrConstruct,
+
+	/* Like eModifierTypeType_Nonconstructive, but does not affect the geometry
+	 * of the object, rather some of its CustomData layers.
+	 * E.g. UVProject and WeightVG modifiers. */
+	eModifierTypeType_NonGeometrical,
 } ModifierTypeType;
 
 typedef enum {
@@ -312,6 +317,7 @@ int           modifier_supportsMapping(struct ModifierData *md);
 int           modifier_couldBeCage(struct Scene *scene, struct ModifierData *md);
 int           modifier_isCorrectableDeformed(struct ModifierData *md);
 int			  modifier_sameTopology(ModifierData *md);
+int           modifier_nonGeometrical(ModifierData *md);
 int           modifier_isEnabled(struct Scene *scene, struct ModifierData *md, int required_mode);
 void          modifier_setError(struct ModifierData *md, const char *format, ...)
 #ifdef __GNUC__
diff --git a/source/blender/blenkernel/intern/modifier.c b/source/blender/blenkernel/intern/modifier.c
index f09be8c34ad..5a389019519 100644
--- a/source/blender/blenkernel/intern/modifier.c
+++ b/source/blender/blenkernel/intern/modifier.c
@@ -239,7 +239,14 @@ int modifier_couldBeCage(struct Scene *scene, ModifierData *md)
 int modifier_sameTopology(ModifierData *md)
 {
 	ModifierTypeInfo *mti = modifierType_getInfo(md->type);
-	return ( mti->type == eModifierTypeType_OnlyDeform || mti->type == eModifierTypeType_Nonconstructive);
+	return ELEM3(mti->type, eModifierTypeType_OnlyDeform, eModifierTypeType_Nonconstructive,
+	             eModifierTypeType_NonGeometrical);
+}
+
+int modifier_nonGeometrical(ModifierData *md)
+{
+	ModifierTypeInfo *mti = modifierType_getInfo(md->type);
+	return (mti->type == eModifierTypeType_NonGeometrical);
 }
 
 void modifier_setError(ModifierData *md, const char *format, ...)