When removing a skin or multires modifier, it skips deletion of the
associated CustomData layer if the object has any other modifiers of
that type. This check has been extended to all objects that use the
object's data.
Similarly, deleting higher multires levels and multires subdivision
will not update the maximum level of any other multires modifiers on
objects that link to the same mesh.
Note that modifier_apply_obdata() doesn't need any changes as it
does not allow applying to multi-user data.
Object joining has also been modified to synchronize multires levels
objects that share a mesh. This is needed because joining can
subdivide or delete levels in order to match the maximum level of the
join-from object to the join-to object.
Fixes bug [#31880] instance multiresolution modifier error.
http://projects.blender.org/tracker/index.php?func=detail&aid=31880&group_id=9&atid=498
Reviewed by Sergey:
http://codereview.appspot.com/6332047/
Actually there were two different issues involved here:
- Recently enabled Smooth modifier wasn't actually designed for curves, so
it in fact requires a bit bigger work to make it working.
For now added check for object's typy in this modifier and if it's not
mesh, it wouldn't try to use edges.
The reason why it worked in 3d viewport is that creating DM from curve while
displist is still ocntrcuting for would result in empty CDDM and that leads to
not taking edges into account, only vertexCos passed to modifier would be used.
This makes it behaving a bit differently from if it was a mesh, but still gives
quite reasonable result. Would leave actual fix for a guy who enabled smooth
modifier.
- Another issue is related on ensuring sculpt mask layer after applying modifier.
This shall happen only for meshes.
* The operator creates bones for each input edge (does not subdivide
them like the skin operator does), adds a fake root bone for skin
roots with multiple children.
* The operator adds vertex weight groups to the original mesh.
* Make copy_object_transform() public, used to match the armature
object to the mesh object.
Skin modifier documentation:
http://wiki.blender.org/index.php/User:Nicholasbishop/SkinModifier
- Make sure functions are named in way BKE_<object>_<action> (same way as RNA callbacks)
- Make functions which are used by mball.c only static and remove their prototypes
from public header file.
Further cleanup is coming.
Was missed check for if modifier is available for particular object type
which ended up with unpredictable results when modifier which isn't supported
yet for some object type as linked to that object type.
