Issue was caused by do_versions being used pdata as reference for active/render/
stencil/clone layer indices instead of fdata.
Added some utility functions used only by do_versions to be sure this indices
are set from fdata for pre-bmesh files.
The issue was caused by CDDM_tessfaces_to_faces not dealing with CD layers.
There was already function BKE_mesh_convert_mfaces_to_mpolys which converted
mfaces to mpolys with converting all CD layers. Made it a bit more general so
it might work with given arrays of faces/polys and re-used it from CDDM module.
Checked with UV and sculpt data from Blender 2.61 and it loaded nice, so
hopefully there's no regressions in loading older files.
/* Return the index of the edge vert that is not equal to 'v'. If
* neither edge vertex is equal to 'v', returns -1. */
int BKE_mesh_edge_other_vert(const struct MEdge *e, int v);
sculpt shape key switch. All cases that called this function needed parameter
only_face_normals set to false, so changed it now.
Also fixed wrong user count for imported mesh from collada and simplified
previous fix for tesselated faces to polygons conversion.
- 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.
- updating normals in py/api's mesh.transform() wasn't working and gave annoying print, disable this, script authors can call calc_normals explicitly if they need.
* When converting mfaces to mpolys, load external MDisp data in, add
CustomDataExternal struct to loopdata if needed.
* Fix multires modifier's filepath RNA functions to use ldata rather
than fdata.
versioning code called a customdata update function which ended up clearing tessfaces - before converting polygons to tessfaces.
Added check so tessfaces aren't cleared when there are no polygons.
old mesh MCol 'r' was blue, 'b' was red, but theres no reason to keep this for bmesh with MLoopCol.
Loading old files works, saving legacy format works too.
What wont work is loading a file after this revision and loading it in an older revision since the bmesh merge.
(it wont crash but the blue and red will be swapped on vertex color layers).
Changed the create_vert_poly_map function to return a more compact
structure. Memory saved will vary depending on the mesh, but typically
it should be about one third of the old size.
