== Multires ==

Fixed bug #23657, "Modifiers dosen't work when you select diffrent mesh for object"

Multires modifier now adds empty mdisps if they're missing, rather than displaying a warning
Switching an object's mesh will now check for a multires modifier; if found the modifier's total number of levels are reset to match the mesh's mdisps
Switching the mesh also forces a multires update so that sculpted changes aren't lost

1 files changed, 17 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/modifier.c b/source/blender/blenkernel/intern/modifier.c
index 63f0f1fa091..43d26f26d1f 100644
--- a/source/blender/blenkernel/intern/modifier.c
+++ b/source/blender/blenkernel/intern/modifier.c
@@ -49,6 +49,7 @@
 #include "BKE_bmesh.h"
 #include "BKE_cloth.h"
 #include "BKE_key.h"
+#include "BKE_multires.h"
 
 #include "MOD_modifiertypes.h"
 
@@ -526,5 +527,21 @@ void modifier_freeTemporaryData(ModifierData *md)
 	}
 }
 
+/* ensure modifier correctness when changing ob->data */
+void test_object_modifiers(Object *ob)
+{
+	ModifierData *md;
+
+	/* just multires checked for now, since only multires
+	   modifies mesh data */
+
+	if(ob->type != OB_MESH) return;
 
+	for(md = ob->modifiers.first; md; md = md->next) {
+		if(md->type == eModifierType_Multires) {
+			MultiresModifierData *mmd = (MultiresModifierData*)md;
 
+			multiresModifier_set_levels_from_disps(mmd, ob);
+		}
+	}
+}