Next, uv sculpting will be ported.
Also fixed "initializer element is not computable at load time" compile error caused due to bit-shifting a constant past its precision length (1L should be 1LL for 32 positions left shift).
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Documentation: http://wiki.blender.org/index.php/User:Psy-Fi/UV_Tools
Major features include:
*16 bit image support in viewport
*Subsurf aware unwrapping
*Smart Stitch(snap/rotate islands, preview, middlepoint/endpoint stitching)
*Seams from islands tool (marks seams and sharp, depending on settings)
*Uv Sculpting(Grab/Pinch/Rotate)
All tools are complete apart from stitching that is considered stable but with an extra edge mode under development(will be in soc-2011-onion-uv-tools).
* CDDM_calc_normals
* CDDM_calc_normals_tessface
these match what we have in trunk - CDDM_calc_normals_mapping() is kept for more comprehensive operatons.
comparing bmesh to trunk, mesh_calc_normals() in bmesh is a much more comprehensive function, calculating mpoly,mface normals, where trunk only calculated vertex normals.
renamed:
* mesh_calc_normals() --> mesh_calc_normals_mapping_ex
* mesh_calc_tessface_normals --> mesh_calc_normals_tessface() - only calculates normals from tessface
* added mesh_calc_normals() - only calculates normals from poltys
this way we can have mesh_calc_normals() remain fast for parts of the code which only need vertex normals to be updated.
only refactor, no func changes- didnt replace mesh_calc_normals_mapping_ex() with mesh_calc_normals() anywhere yet.
added checks to mesh.validate() so it checks for nan weights and negative groups which can crash blender.
the file in the report looks to be corrupt, but this at least can make it load.
also noticed validate was using isnan() and finite() were both used to check valid vertex locations, only finite is needed.
Warning! Tesselation uvs or vcol data got out of sync, "had to reset!
This would happen on every editmode edit with UV's and wasn't too reassuring that blender was handling uvs/vcols correctly.
From looking into the problem I found that creating the undo mesh would act as if it was tessellating the existing mesh each time and complain that the data was out of sync, when infact the mesh was just created and being filled in.
Also, allocating uv and vcol customdata arrats for tessfaces isn't needed for undo mesh, so save some memory and dont allocate these in the first place.
- converting nurbs to mesh was casting the material to unsigned char.
- subsurf was casting to char, then int -> short in a loop.
- have material functions take & return shorts.
also added a safety check for the crash, even though reverting fixes.
bmesh_to_mesh_exec() could set me->mface array to NULL but leave me->totface when notellelation=1, which is likely to give trouble elsewhere.
- making local object data - Curve/Mesh/MBall lost references to linked materials.
- joining a linked mesh object into a local one lost the link.
As well as these reported bugs, checked all local functions for consistency/correctness and found other cases which would also fail.
- making local metaball didn't ensure unique ID name.
- make_local_armature() was missing check for object users - main body of code would never run.
- local particles didn't set the dupli-group or textures to extern.
checked all local functions for consistency/correctness.
into account that some tools use normals for things other than display. Now
we properly initialize vertex normals at flat faces too.
Also fixed a normal refresh issue, and deduplicated CDDM/mesh normal
calculation code.
Coded a new modifier, "Precision UV Interpolation",
that triangulates, subdivides, then uses brecht's mean
value interpolation to interpolate face data.
Textures on ngon faces get interpolated a bit nicer, in
other words (though concave cases, e.g. 'N', don't work very well).
tested that correcting invalid meshes works by generating random meshes and checking that only the first call to mesh.validate() makes changes.
found 2 bugs in mesh validation.
- face sorting array wasn't assigned correct indices.
- removing invalid edges used wrong comparison.
