Fix T62941 Subdivision Modifier Showing all face dots

Previously in 2.79 we were using a specialized drawing using derivedMesh.

Now the subsurf modifier tag each center vertex as facedot and let the
DRWManager pick it up.

Some modifiers (deforming ones) do not clear the tag so we can use this
technique even if there is deforming modifiers after subsurf modifiers.

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_modifier.h b/source/blender/blenkernel/BKE_modifier.h
index 30a366805b6..4aab2a346e7 100644
--- a/source/blender/blenkernel/BKE_modifier.h
+++ b/source/blender/blenkernel/BKE_modifier.h
@@ -382,6 +382,7 @@ struct Object *modifiers_isDeformedByMeshDeform(struct Object *ob);
 struct Object *modifiers_isDeformedByLattice(struct Object *ob);
 struct Object *modifiers_isDeformedByCurve(struct Object *ob);
 bool modifiers_usesArmature(struct Object *ob, struct bArmature *arm);
+bool modifiers_usesSubsurfFacedots(struct Scene *scene, struct Object *ob);
 bool modifiers_isCorrectableDeformed(struct Scene *scene, struct Object *ob);
 void modifier_freeTemporaryData(struct ModifierData *md);
 bool modifiers_isPreview(struct Object *ob);