* added public functions to `FarMeshFactory` that duplicate, rearrange, and split vertices
* added supporting protected functions to `FarCatmarkSubdivisionTablesFactory` and `FarPatchTablesFactory`
This makes it possible to use use bilinear subdivisions which
corresponds to Blender's simple subdivisions.
Most of the changes doesn't break any existing API because of
using default values. it's only C-API function which now expects
an extra argument.
This doesn't entirely work because it uses adaptive evaluator
which gives some unwanted curvatures when using bilinear scheme.
Basically title says it all, now it's possible to pass
subdivision scheme to the OsdUtilMesh::Initialize().
It's a last argument with default to CATMARK so it doesn't
break existing code.
Unused argument `pass` was defined in the CUDA kernel and it was never
passed to this function from the C++ code. This argument is also wasn't
used by the function itself.
Solved by checking on run-time whether texture buffer objects
are supported.
When building with GLEW library doing compile-time check is
not enough, because actual information about existing features
is only known on runtime.
This only makes ti so CPU backend works, GLSL backends still
requires some work if we want them to make working. Not sure
it worth doing this now.
* added `OsdMeshInterface::GetFarMesh` and `OsdMesh::GetFarMesh` to match `OsdGLMesh` and `OsdD3D11Mesh`
* added `interleaved` argument to `OsdMesh::Refine` to match `OsdMeshInterface::Refine`
* The CATMARK_QUAD_FACE_VERTEX kernel calculates the face-vertex for a quadrilateral face. It applies to every face after the first subdivision step, and may be applied for the first subdivision step of a quadrilateral coarse mesh.
* The CATMARK_TRI_QUAD_FACE_VERTEX kernel calculates the face-vertex for a triangle or quadrilateral face. It may be applied for the first subdivision step of a coarse mesh composed of triangles and/or quadrilaterals.
* Both kernels calculate each face-vertex using four vertex indices (triangles are specified by repeating the third index). Therefore neither kernel uses the F_ITa codex table, and instead the first vertex offset in the F_IT index table is stored in the FarKernelBatch's table offset.
If the system has CLEW installed (which is detected by recently
added FindCLEW routines) then OpenSubduv would be compiled against
this library.
It makes binaries and libraries more portable across the systems,
so it's possible to run the same binary on systems with and without
OpenCL SDK installed.
The most annoying part of the change is updating examples to load
OpenCL libraries, but ideally code around controllers and interface
creation is to be de-duplicated anyway.
Based on the pull request #303 from Martijn Berger
- Some missing includes of <algorithms> in order to have
stdd::min() and similar functions.
- Need to cast numIndices and numNVerts to int explicitly
in order to solve warning treated as an error about
precision loss.
- Can't do vector[0] for an empty vector, it'll generate
a runtime range check error.
- MSVC only works fine with make_pair(foo, bar) syntax,
without explicit template substitution here. Otherwise
weird 'can't cast int to int&&' errors are happening.
- It used to create _computeContext twice.
- Ownership of refiner didn't set properly, because
Initialize() forces evaluator to drop ownership.
So now ownership sets after initialization from
topology.
