Blender Git Commits

Move Mesh::tessellate to mesh_subdivision.cpp

Adding OpenSubdiv support will require a lot of code, to keep things organized
subdivision related things are being moved to their own file.

Add OpenSubdiv build options for Cycles

This adds a WITH_CYCLES_OPENSUBDIV build option which will enable Catmull-Clark
subdivision meshes via OpenSubdiv. This option will be turned on automatically
if WITH_OPENSUBDIV has been turned on. Right now this option doesn't
actually do anything.

Merge branch 'master' into temp-cycles-microdisplacement

Ensure split quads line up with split ngons

Improved splitting

Split subpatches such that the ratio of T for opposite edges doesn't
exceed 1.5, this reduces over tessellation for some patches

Remove subd_mesh.cpp and subd_mesh.h

Old code that's not needed anymore

Remove triangles from DiagSplit implementation

Not needed now that we have ngons

Disable curves on subdivision meshes for now

Attributes on curves seems broken even without subdivision, but is even
worse with. Will investigate re-enabling later.

Split vertex normals on ngons

Keep size of vert_patch_uv in sync to avoid triggering assert

Sync ngons and attributes from Blender to Cycles

Attribute interpolation for ngons

Copy ptex faces to device memory

Kernel now has access to ptex faces and ptex face mapping

Store ptex offset for faces

Each ngon is split into multiple faces, need to keep track of how they relate.

Split ngons into quads

Replace Patch with SubdFace with inital ngon support

This renames most mentions of patches to subd faces, old way of naming was
confusing. Also start supporting ngons, which will be needed for proper
Catmull-Clark subdivision surfaces. Right now this is mostly just changing
how data is passed around, actual ngon support will come later.

Simplify how primitive counts are passed to Attribute

Refactor Attribute so that primitives counts don't need to be passed around
everywhere and can be calculated from one place.

Remove extra image texture from kernel_textures.h

Merge branch 'master' into temp-cycles-microdisplacement

Fix building of OpenCL kernel