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https://github.com/PixarAnimationStudios/OpenSubdiv
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7954fbab37
- don't rotate (s,t) coordinates but rotate the patch instead ! - refactor osd/cpuEvalLimitKernels to share Far::PatchTables cubic spline interpolation functions : this replaces tensor product formulation with weight matrices, which does not really impact performance here, but would have to be replaced when implementing regular gridding functions. - fix OsdCpuEvalLimitController to not rotate coordinates and pass the rotation bitfields - expose Far::PatchTables spline interpolation API (protected -> public) - fix glEvalLimit tangent buffers (remove empty padding - see below) - change policy for tangent buffers : the output buffer descriptor is **NO LONGER APPLIED** to tangent output buffers. Tangent primvar data buffers are no longer applying the offset and stride from the descriptor (because it doesn't make sense to share it). If more flexiblity is required, we will consider adding independent descriptors for the tangent buffers. This change will impact existing code that generates tangents with the EvalLimit controller. fixes #370
130 lines
4.2 KiB
C++
130 lines
4.2 KiB
C++
//
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// Copyright 2013 Pixar
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//
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// Licensed under the Apache License, Version 2.0 (the "Apache License")
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// with the following modification; you may not use this file except in
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// compliance with the Apache License and the following modification to it:
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// Section 6. Trademarks. is deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the trade
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// names, trademarks, service marks, or product names of the Licensor
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// and its affiliates, except as required to comply with Section 4(c) of
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// the License and to reproduce the content of the NOTICE file.
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//
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// You may obtain a copy of the Apache License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the Apache License with the above modification is
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// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the Apache License for the specific
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// language governing permissions and limitations under the Apache License.
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//
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#ifndef OSD_CPU_EVAL_LIMIT_KERNEL_H
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#define OSD_CPU_EVAL_LIMIT_KERNEL_H
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#include "../version.h"
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#include "../osd/vertexDescriptor.h"
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#include "../far/patchParam.h"
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#include "../far/types.h"
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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namespace Far {
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class StencilTables;
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}
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namespace Osd {
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void
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evalBilinear(float u, float v,
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Far::Index const * vertexIndices,
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VertexBufferDescriptor const & inDesc,
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float const * inQ,
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VertexBufferDescriptor const & outDesc,
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float * outQ);
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void
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evalBSpline(Far::PatchParam::BitField bits,
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float u, float v,
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Far::Index const * vertexIndices,
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VertexBufferDescriptor const & inDesc,
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float const * inQ,
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VertexBufferDescriptor const & outDesc,
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float * outQ,
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float * outDQU,
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float * outDQV );
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void
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evalBoundary(Far::PatchParam::BitField bits,
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float u, float v,
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Far::Index const * vertexIndices,
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VertexBufferDescriptor const & inDesc,
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float const * inQ,
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VertexBufferDescriptor const & outDesc,
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float * outQ,
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float * outDQU,
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float * outDQV );
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void
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evalCorner(Far::PatchParam::BitField bits,
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float u, float v,
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Far::Index const * vertexIndices,
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VertexBufferDescriptor const & inDesc,
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float const * inQ,
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VertexBufferDescriptor const & outDesc,
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float * outQ,
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float * outDQU,
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float * outDQV );
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void
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evalGregoryBasis(Far::PatchParam::BitField bits, float u, float v,
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Far::StencilTables const & basisStencils,
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int stencilIndex,
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VertexBufferDescriptor const & inDesc,
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float const * inQ,
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VertexBufferDescriptor const & outDesc,
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float * outQ,
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float * outDQU,
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float * outDQV );
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void
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evalGregory(Far::PatchParam::BitField bits, float u, float v,
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Far::Index const * vertexIndices,
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Far::Index const * vertexValenceBuffer,
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unsigned int const * quadOffsetBuffer,
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int maxValence,
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VertexBufferDescriptor const & inDesc,
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float const * inQ,
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VertexBufferDescriptor const & outDesc,
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float * outQ,
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float * outDQU,
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float * outDQV );
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void
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evalGregoryBoundary(Far::PatchParam::BitField bits, float u, float v,
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Far::Index const * vertexIndices,
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Far::Index const * vertexValenceBuffer,
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unsigned int const * quadOffsetBuffer,
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int maxValence,
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VertexBufferDescriptor const & inDesc,
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float const * inQ,
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VertexBufferDescriptor const & outDesc,
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float * outQ,
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float * outDQU,
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float * outDQV );
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} // end namespace Osd
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} // end namespace OPENSUBDIV_VERSION
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using namespace OPENSUBDIV_VERSION;
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} // end namespace OpenSubdiv
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#endif /* OSD_CPU_EVAL_LIMIT_KERNEL_H */
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