mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-12-12 03:50:09 +00:00
724 lines
26 KiB
C++
724 lines
26 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 OPENSUBDIV3_OSD_MESH_H
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#define OPENSUBDIV3_OSD_MESH_H
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#include "../version.h"
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#include <bitset>
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#include <cassert>
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#include <cstring>
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#include <vector>
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#include "../far/topologyRefiner.h"
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#include "../far/patchTableFactory.h"
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#include "../far/stencilTable.h"
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#include "../far/stencilTableFactory.h"
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#include "../osd/bufferDescriptor.h"
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struct ID3D11DeviceContext;
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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namespace Osd {
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enum MeshBits {
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MeshAdaptive = 0,
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MeshInterleaveVarying = 1,
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MeshFVarData = 2,
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MeshFVarAdaptive = 3,
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MeshUseSmoothCornerPatch = 4,
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MeshUseSingleCreasePatch = 5,
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MeshUseInfSharpPatch = 6,
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MeshEndCapBilinearBasis = 7, // exclusive
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MeshEndCapBSplineBasis = 8, // exclusive
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MeshEndCapGregoryBasis = 9, // exclusive
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MeshEndCapLegacyGregory = 10, // exclusive
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NUM_MESH_BITS = 11,
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};
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typedef std::bitset<NUM_MESH_BITS> MeshBitset;
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// ---------------------------------------------------------------------------
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template <class PATCH_TABLE>
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class MeshInterface {
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public:
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typedef PATCH_TABLE PatchTable;
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typedef typename PatchTable::VertexBufferBinding VertexBufferBinding;
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public:
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MeshInterface() { }
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virtual ~MeshInterface() { }
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virtual int GetNumVertices() const = 0;
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virtual int GetMaxValence() const = 0;
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virtual void UpdateVertexBuffer(float const *vertexData,
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int startVertex, int numVerts) = 0;
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virtual void UpdateVaryingBuffer(float const *varyingData,
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int startVertex, int numVerts) = 0;
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virtual void Refine() = 0;
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virtual void Synchronize() = 0;
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virtual PatchTable * GetPatchTable() const = 0;
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virtual Far::PatchTable const *GetFarPatchTable() const = 0;
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virtual VertexBufferBinding BindVertexBuffer() = 0;
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virtual VertexBufferBinding BindVaryingBuffer() = 0;
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protected:
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static inline void refineMesh(Far::TopologyRefiner & refiner,
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int level, bool adaptive,
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bool singleCreasePatch) {
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if (adaptive) {
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Far::TopologyRefiner::AdaptiveOptions options(level);
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options.useSingleCreasePatch = singleCreasePatch;
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refiner.RefineAdaptive(options);
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} else {
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// This dependency on FVar channels should not be necessary
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bool fullTopologyInLastLevel = refiner.GetNumFVarChannels()>0;
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Far::TopologyRefiner::UniformOptions options(level);
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options.fullTopologyInLastLevel = fullTopologyInLastLevel;
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refiner.RefineUniform(options);
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}
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}
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static inline void refineMesh(Far::TopologyRefiner & refiner,
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int level, MeshBitset bits) {
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if (bits.test(MeshAdaptive)) {
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Far::TopologyRefiner::AdaptiveOptions options(level);
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options.useSingleCreasePatch = bits.test(MeshUseSingleCreasePatch);
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options.useInfSharpPatch = bits.test(MeshUseInfSharpPatch);
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options.considerFVarChannels = bits.test(MeshFVarAdaptive);
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refiner.RefineAdaptive(options);
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} else {
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// This dependency on FVar channels should not be necessary
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bool fullTopologyInLastLevel = refiner.GetNumFVarChannels()>0;
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Far::TopologyRefiner::UniformOptions options(level);
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options.fullTopologyInLastLevel = fullTopologyInLastLevel;
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refiner.RefineUniform(options);
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}
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}
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};
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// ---------------------------------------------------------------------------
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template <typename STENCIL_TABLE, typename SRC_STENCIL_TABLE,
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typename DEVICE_CONTEXT>
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STENCIL_TABLE const *
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convertToCompatibleStencilTable(
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SRC_STENCIL_TABLE const *table, DEVICE_CONTEXT *context) {
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if (! table) return NULL;
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return STENCIL_TABLE::Create(table, context);
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}
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template <>
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inline Far::StencilTable const *
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convertToCompatibleStencilTable<Far::StencilTable, Far::StencilTable, void>(
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Far::StencilTable const *table, void * /*context*/) {
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// no need for conversion
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// XXX: We don't want to even copy.
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if (! table) return NULL;
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return new Far::StencilTable(*table);
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}
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template <>
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inline Far::LimitStencilTable const *
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convertToCompatibleStencilTable<Far::LimitStencilTable, Far::LimitStencilTable, void>(
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Far::LimitStencilTable const *table, void * /*context*/) {
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// no need for conversion
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// XXX: We don't want to even copy.
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if (! table) return NULL;
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return new Far::LimitStencilTable(*table);
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}
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template <>
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inline Far::StencilTable const *
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convertToCompatibleStencilTable<Far::StencilTable, Far::StencilTable, ID3D11DeviceContext>(
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Far::StencilTable const *table, ID3D11DeviceContext * /*context*/) {
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// no need for conversion
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// XXX: We don't want to even copy.
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if (! table) return NULL;
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return new Far::StencilTable(*table);
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}
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// ---------------------------------------------------------------------------
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// Osd evaluator cache: for the GPU backends require compiled instance
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// (GLXFB, GLCompute, CL)
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//
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// note: this is just an example usage and client applications are supposed
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// to implement their own structure for Evaluator instance.
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//
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template <typename EVALUATOR>
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class EvaluatorCacheT {
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public:
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~EvaluatorCacheT() {
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for(typename Evaluators::iterator it = _evaluators.begin();
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it != _evaluators.end(); ++it) {
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delete it->evaluator;
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}
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}
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// XXX: FIXME, linear search
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struct Entry {
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Entry(BufferDescriptor const &srcDescArg,
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BufferDescriptor const &dstDescArg,
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BufferDescriptor const &duDescArg,
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BufferDescriptor const &dvDescArg,
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EVALUATOR *evalArg) : srcDesc(srcDescArg), dstDesc(dstDescArg),
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duDesc(duDescArg), dvDesc(dvDescArg),
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duuDesc(BufferDescriptor()),
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duvDesc(BufferDescriptor()),
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dvvDesc(BufferDescriptor()),
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evaluator(evalArg) {}
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Entry(BufferDescriptor const &srcDescArg,
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BufferDescriptor const &dstDescArg,
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BufferDescriptor const &duDescArg,
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BufferDescriptor const &dvDescArg,
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BufferDescriptor const &duuDescArg,
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BufferDescriptor const &duvDescArg,
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BufferDescriptor const &dvvDescArg,
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EVALUATOR *evalArg) : srcDesc(srcDescArg), dstDesc(dstDescArg),
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duDesc(duDescArg), dvDesc(dvDescArg),
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duuDesc(duuDescArg),
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duvDesc(duvDescArg),
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dvvDesc(dvvDescArg),
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evaluator(evalArg) {}
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BufferDescriptor srcDesc, dstDesc;
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BufferDescriptor duDesc, dvDesc;
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BufferDescriptor duuDesc, duvDesc, dvvDesc;
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EVALUATOR *evaluator;
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};
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typedef std::vector<Entry> Evaluators;
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template <typename DEVICE_CONTEXT>
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EVALUATOR *GetEvaluator(BufferDescriptor const &srcDesc,
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BufferDescriptor const &dstDesc,
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DEVICE_CONTEXT *deviceContext) {
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return GetEvaluator(srcDesc, dstDesc,
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BufferDescriptor(),
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BufferDescriptor(),
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BufferDescriptor(),
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BufferDescriptor(),
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BufferDescriptor(),
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deviceContext);
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}
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template <typename DEVICE_CONTEXT>
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EVALUATOR *GetEvaluator(BufferDescriptor const &srcDesc,
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BufferDescriptor const &dstDesc,
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BufferDescriptor const &duDesc,
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BufferDescriptor const &dvDesc,
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DEVICE_CONTEXT *deviceContext) {
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return GetEvaluator(srcDesc, dstDesc,
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duDesc, dvDesc,
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BufferDescriptor(),
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BufferDescriptor(),
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BufferDescriptor(),
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deviceContext);
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}
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template <typename DEVICE_CONTEXT>
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EVALUATOR *GetEvaluator(BufferDescriptor const &srcDesc,
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BufferDescriptor const &dstDesc,
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BufferDescriptor const &duDesc,
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BufferDescriptor const &dvDesc,
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BufferDescriptor const &duuDesc,
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BufferDescriptor const &duvDesc,
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BufferDescriptor const &dvvDesc,
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DEVICE_CONTEXT *deviceContext) {
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for(typename Evaluators::iterator it = _evaluators.begin();
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it != _evaluators.end(); ++it) {
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if (isEqual(srcDesc, it->srcDesc) &&
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isEqual(dstDesc, it->dstDesc) &&
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isEqual(duDesc, it->duDesc) &&
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isEqual(dvDesc, it->dvDesc) &&
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isEqual(duuDesc, it->duuDesc) &&
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isEqual(duvDesc, it->duvDesc) &&
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isEqual(dvvDesc, it->dvvDesc)) {
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return it->evaluator;
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}
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}
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EVALUATOR *e = EVALUATOR::Create(srcDesc, dstDesc,
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duDesc, dvDesc,
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duuDesc, duvDesc, dvvDesc,
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deviceContext);
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_evaluators.push_back(Entry(srcDesc, dstDesc,
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duDesc, dvDesc,
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duuDesc, duvDesc, dvvDesc, e));
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return e;
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}
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private:
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static bool isEqual(BufferDescriptor const &a,
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BufferDescriptor const &b) {
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int offsetA = a.stride ? (a.offset % a.stride) : 0;
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int offsetB = b.stride ? (b.offset % b.stride) : 0;
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// Note: XFB kernel needs to be configured with the local offset
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// of the dstDesc to skip preceding primvars.
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return (offsetA == offsetB &&
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a.length == b.length &&
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a.stride == b.stride);
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}
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Evaluators _evaluators;
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};
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/// @cond INTERNAL
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// template helpers to see if the evaluator is instantiatable or not.
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template <typename EVALUATOR>
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struct instantiatable
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{
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typedef char yes[1];
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typedef char no[2];
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template <typename C> static yes &chk(typename C::Instantiatable *t=0);
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template <typename C> static no &chk(...);
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static bool const value = sizeof(chk<EVALUATOR>(0)) == sizeof(yes);
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};
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template <bool C, typename T=void>
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struct enable_if { typedef T type; };
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template <typename T>
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struct enable_if<false, T> { };
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/// @endcond
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// extract a kernel from cache if available
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template <typename EVALUATOR, typename DEVICE_CONTEXT>
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static EVALUATOR *GetEvaluator(
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EvaluatorCacheT<EVALUATOR> *cache,
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BufferDescriptor const &srcDesc,
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BufferDescriptor const &dstDesc,
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BufferDescriptor const &duDesc,
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BufferDescriptor const &dvDesc,
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BufferDescriptor const &duuDesc,
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BufferDescriptor const &duvDesc,
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BufferDescriptor const &dvvDesc,
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DEVICE_CONTEXT deviceContext,
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typename enable_if<instantiatable<EVALUATOR>::value, void>::type*t=0) {
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(void)t;
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if (cache == NULL) return NULL;
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return cache->GetEvaluator(srcDesc, dstDesc,
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duDesc, dvDesc, duuDesc, duvDesc, dvvDesc,
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deviceContext);
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}
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template <typename EVALUATOR, typename DEVICE_CONTEXT>
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static EVALUATOR *GetEvaluator(
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EvaluatorCacheT<EVALUATOR> *cache,
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BufferDescriptor const &srcDesc,
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BufferDescriptor const &dstDesc,
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BufferDescriptor const &duDesc,
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BufferDescriptor const &dvDesc,
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DEVICE_CONTEXT deviceContext,
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typename enable_if<instantiatable<EVALUATOR>::value, void>::type*t=0) {
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(void)t;
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if (cache == NULL) return NULL;
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return cache->GetEvaluator(srcDesc, dstDesc, duDesc, dvDesc, deviceContext);
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}
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template <typename EVALUATOR, typename DEVICE_CONTEXT>
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static EVALUATOR *GetEvaluator(
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EvaluatorCacheT<EVALUATOR> *cache,
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BufferDescriptor const &srcDesc,
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BufferDescriptor const &dstDesc,
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DEVICE_CONTEXT deviceContext,
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typename enable_if<instantiatable<EVALUATOR>::value, void>::type*t=0) {
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(void)t;
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if (cache == NULL) return NULL;
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return cache->GetEvaluator(srcDesc, dstDesc,
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BufferDescriptor(),
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BufferDescriptor(),
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deviceContext);
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}
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// fallback
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template <typename EVALUATOR, typename DEVICE_CONTEXT>
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static EVALUATOR *GetEvaluator(
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EvaluatorCacheT<EVALUATOR> *,
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BufferDescriptor const &,
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BufferDescriptor const &,
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BufferDescriptor const &,
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BufferDescriptor const &,
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BufferDescriptor const &,
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BufferDescriptor const &,
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BufferDescriptor const &,
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DEVICE_CONTEXT,
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typename enable_if<!instantiatable<EVALUATOR>::value, void>::type*t=0) {
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(void)t;
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return NULL;
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}
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template <typename EVALUATOR, typename DEVICE_CONTEXT>
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static EVALUATOR *GetEvaluator(
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EvaluatorCacheT<EVALUATOR> *,
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BufferDescriptor const &,
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BufferDescriptor const &,
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BufferDescriptor const &,
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BufferDescriptor const &,
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DEVICE_CONTEXT,
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typename enable_if<!instantiatable<EVALUATOR>::value, void>::type*t=0) {
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(void)t;
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return NULL;
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}
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template <typename EVALUATOR, typename DEVICE_CONTEXT>
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static EVALUATOR *GetEvaluator(
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EvaluatorCacheT<EVALUATOR> *,
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BufferDescriptor const &,
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BufferDescriptor const &,
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DEVICE_CONTEXT,
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typename enable_if<!instantiatable<EVALUATOR>::value, void>::type*t=0) {
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(void)t;
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return NULL;
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}
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// ---------------------------------------------------------------------------
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template <typename VERTEX_BUFFER,
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typename STENCIL_TABLE,
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typename EVALUATOR,
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typename PATCH_TABLE,
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typename DEVICE_CONTEXT = void>
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class Mesh : public MeshInterface<PATCH_TABLE> {
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public:
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typedef VERTEX_BUFFER VertexBuffer;
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typedef EVALUATOR Evaluator;
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typedef STENCIL_TABLE StencilTable;
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typedef PATCH_TABLE PatchTable;
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typedef DEVICE_CONTEXT DeviceContext;
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typedef EvaluatorCacheT<Evaluator> EvaluatorCache;
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typedef typename PatchTable::VertexBufferBinding VertexBufferBinding;
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Mesh(Far::TopologyRefiner * refiner,
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int numVertexElements,
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int numVaryingElements,
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int level,
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MeshBitset bits = MeshBitset(),
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EvaluatorCache * evaluatorCache = NULL,
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DeviceContext * deviceContext = NULL) :
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_refiner(refiner),
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_farPatchTable(NULL),
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_numVertices(0),
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_maxValence(0),
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_vertexBuffer(NULL),
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_varyingBuffer(NULL),
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_vertexStencilTable(NULL),
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_varyingStencilTable(NULL),
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_evaluatorCache(evaluatorCache),
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_patchTable(NULL),
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_deviceContext(deviceContext) {
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assert(_refiner);
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MeshInterface<PATCH_TABLE>::refineMesh(
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*_refiner, level, bits);
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int vertexBufferStride = numVertexElements +
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(bits.test(MeshInterleaveVarying) ? numVaryingElements : 0);
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int varyingBufferStride =
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(bits.test(MeshInterleaveVarying) ? 0 : numVaryingElements);
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initializeContext(numVertexElements,
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numVaryingElements,
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level, bits);
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initializeVertexBuffers(_numVertices,
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vertexBufferStride,
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varyingBufferStride);
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// configure vertex buffer descriptor
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_vertexDesc =
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BufferDescriptor(0, numVertexElements, vertexBufferStride);
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if (bits.test(MeshInterleaveVarying)) {
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_varyingDesc = BufferDescriptor(
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numVertexElements, numVaryingElements, vertexBufferStride);
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} else {
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_varyingDesc = BufferDescriptor(
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0, numVaryingElements, varyingBufferStride);
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}
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}
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virtual ~Mesh() {
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delete _refiner;
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delete _farPatchTable;
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delete _vertexBuffer;
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delete _varyingBuffer;
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delete _vertexStencilTable;
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delete _varyingStencilTable;
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delete _patchTable;
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// deviceContext and evaluatorCache are not owned by this class.
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}
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virtual void UpdateVertexBuffer(float const *vertexData,
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int startVertex, int numVerts) {
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_vertexBuffer->UpdateData(vertexData, startVertex, numVerts,
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_deviceContext);
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}
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virtual void UpdateVaryingBuffer(float const *varyingData,
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int startVertex, int numVerts) {
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_varyingBuffer->UpdateData(varyingData, startVertex, numVerts,
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_deviceContext);
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}
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virtual void Refine() {
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int numControlVertices = _refiner->GetLevel(0).GetNumVertices();
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BufferDescriptor srcDesc = _vertexDesc;
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BufferDescriptor dstDesc(srcDesc);
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dstDesc.offset += numControlVertices * dstDesc.stride;
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// note that the _evaluatorCache can be NULL and thus
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// the evaluatorInstance can be NULL
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// (for uninstantiatable kernels CPU,TBB etc)
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Evaluator const *instance = GetEvaluator<Evaluator>(
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_evaluatorCache, srcDesc, dstDesc,
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_deviceContext);
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Evaluator::EvalStencils(_vertexBuffer, srcDesc,
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_vertexBuffer, dstDesc,
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_vertexStencilTable,
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instance, _deviceContext);
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if (_varyingDesc.length > 0) {
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BufferDescriptor vSrcDesc = _varyingDesc;
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|
BufferDescriptor vDstDesc(vSrcDesc);
|
|
vDstDesc.offset += numControlVertices * vDstDesc.stride;
|
|
|
|
instance = GetEvaluator<Evaluator>(
|
|
_evaluatorCache, vSrcDesc, vDstDesc,
|
|
_deviceContext);
|
|
|
|
if (_varyingBuffer) {
|
|
// non-interleaved
|
|
Evaluator::EvalStencils(_varyingBuffer, vSrcDesc,
|
|
_varyingBuffer, vDstDesc,
|
|
_varyingStencilTable,
|
|
instance, _deviceContext);
|
|
} else {
|
|
// interleaved
|
|
Evaluator::EvalStencils(_vertexBuffer, vSrcDesc,
|
|
_vertexBuffer, vDstDesc,
|
|
_varyingStencilTable,
|
|
instance, _deviceContext);
|
|
}
|
|
}
|
|
}
|
|
|
|
virtual void Synchronize() {
|
|
Evaluator::Synchronize(_deviceContext);
|
|
}
|
|
|
|
virtual PatchTable * GetPatchTable() const {
|
|
return _patchTable;
|
|
}
|
|
|
|
virtual Far::PatchTable const *GetFarPatchTable() const {
|
|
return _farPatchTable;
|
|
}
|
|
|
|
virtual int GetNumVertices() const { return _numVertices; }
|
|
|
|
virtual int GetMaxValence() const { return _maxValence; }
|
|
|
|
virtual VertexBufferBinding BindVertexBuffer() {
|
|
return _vertexBuffer->BindVBO(_deviceContext);
|
|
}
|
|
|
|
virtual VertexBufferBinding BindVaryingBuffer() {
|
|
return _varyingBuffer->BindVBO(_deviceContext);
|
|
}
|
|
|
|
virtual VertexBuffer * GetVertexBuffer() {
|
|
return _vertexBuffer;
|
|
}
|
|
|
|
virtual VertexBuffer * GetVaryingBuffer() {
|
|
return _varyingBuffer;
|
|
}
|
|
|
|
virtual Far::TopologyRefiner const * GetTopologyRefiner() const {
|
|
return _refiner;
|
|
}
|
|
|
|
private:
|
|
void initializeContext(int numVertexElements,
|
|
int numVaryingElements,
|
|
int level, MeshBitset bits) {
|
|
assert(_refiner);
|
|
|
|
Far::StencilTableFactory::Options options;
|
|
options.generateOffsets = true;
|
|
options.generateIntermediateLevels =
|
|
_refiner->IsUniform() ? false : true;
|
|
|
|
Far::StencilTable const * vertexStencils = NULL;
|
|
Far::StencilTable const * varyingStencils = NULL;
|
|
|
|
if (numVertexElements>0) {
|
|
|
|
vertexStencils = Far::StencilTableFactory::Create(*_refiner,
|
|
options);
|
|
}
|
|
|
|
if (numVaryingElements>0) {
|
|
|
|
options.interpolationMode =
|
|
Far::StencilTableFactory::INTERPOLATE_VARYING;
|
|
|
|
varyingStencils = Far::StencilTableFactory::Create(*_refiner,
|
|
options);
|
|
}
|
|
|
|
Far::PatchTableFactory::Options poptions(level);
|
|
poptions.generateFVarTables = bits.test(MeshFVarData);
|
|
poptions.generateFVarLegacyLinearPatches = !bits.test(MeshFVarAdaptive);
|
|
poptions.generateLegacySharpCornerPatches = !bits.test(MeshUseSmoothCornerPatch);
|
|
poptions.useSingleCreasePatch = bits.test(MeshUseSingleCreasePatch);
|
|
poptions.useInfSharpPatch = bits.test(MeshUseInfSharpPatch);
|
|
|
|
// points on bilinear and gregory basis endcap boundaries can be
|
|
// shared among adjacent patches to save some stencils.
|
|
if (bits.test(MeshEndCapBilinearBasis)) {
|
|
poptions.SetEndCapType(
|
|
Far::PatchTableFactory::Options::ENDCAP_BILINEAR_BASIS);
|
|
poptions.shareEndCapPatchPoints = true;
|
|
} else if (bits.test(MeshEndCapBSplineBasis)) {
|
|
poptions.SetEndCapType(
|
|
Far::PatchTableFactory::Options::ENDCAP_BSPLINE_BASIS);
|
|
} else if (bits.test(MeshEndCapGregoryBasis)) {
|
|
poptions.SetEndCapType(
|
|
Far::PatchTableFactory::Options::ENDCAP_GREGORY_BASIS);
|
|
poptions.shareEndCapPatchPoints = true;
|
|
} else if (bits.test(MeshEndCapLegacyGregory)) {
|
|
poptions.SetEndCapType(
|
|
Far::PatchTableFactory::Options::ENDCAP_LEGACY_GREGORY);
|
|
}
|
|
|
|
_farPatchTable = Far::PatchTableFactory::Create(*_refiner, poptions);
|
|
|
|
// if there's endcap stencils, merge it into regular stencils.
|
|
if (_farPatchTable->GetLocalPointStencilTable()) {
|
|
// append stencils
|
|
if (Far::StencilTable const *vertexStencilsWithLocalPoints =
|
|
Far::StencilTableFactory::AppendLocalPointStencilTable(
|
|
*_refiner,
|
|
vertexStencils,
|
|
_farPatchTable->GetLocalPointStencilTable())) {
|
|
delete vertexStencils;
|
|
vertexStencils = vertexStencilsWithLocalPoints;
|
|
}
|
|
if (varyingStencils) {
|
|
if (Far::StencilTable const *varyingStencilsWithLocalPoints =
|
|
Far::StencilTableFactory::AppendLocalPointStencilTable(
|
|
*_refiner,
|
|
varyingStencils,
|
|
_farPatchTable->GetLocalPointVaryingStencilTable())) {
|
|
delete varyingStencils;
|
|
varyingStencils = varyingStencilsWithLocalPoints;
|
|
}
|
|
}
|
|
}
|
|
|
|
_maxValence = _farPatchTable->GetMaxValence();
|
|
_patchTable = PatchTable::Create(_farPatchTable, _deviceContext);
|
|
|
|
// numvertices = coarse verts + refined verts + gregory basis verts
|
|
_numVertices = vertexStencils->GetNumControlVertices()
|
|
+ vertexStencils->GetNumStencils();
|
|
|
|
// convert to device stenciltable if necessary.
|
|
_vertexStencilTable =
|
|
convertToCompatibleStencilTable<StencilTable>(
|
|
vertexStencils, _deviceContext);
|
|
_varyingStencilTable =
|
|
convertToCompatibleStencilTable<StencilTable>(
|
|
varyingStencils, _deviceContext);
|
|
|
|
// FIXME: we do extra copyings for Far::Stencils.
|
|
delete vertexStencils;
|
|
delete varyingStencils;
|
|
}
|
|
|
|
void initializeVertexBuffers(int numVertices,
|
|
int numVertexElements,
|
|
int numVaryingElements) {
|
|
|
|
if (numVertexElements) {
|
|
_vertexBuffer = VertexBuffer::Create(numVertexElements,
|
|
numVertices, _deviceContext);
|
|
}
|
|
|
|
if (numVaryingElements) {
|
|
_varyingBuffer = VertexBuffer::Create(numVaryingElements,
|
|
numVertices, _deviceContext);
|
|
}
|
|
}
|
|
|
|
Far::TopologyRefiner * _refiner;
|
|
Far::PatchTable * _farPatchTable;
|
|
|
|
int _numVertices;
|
|
int _maxValence;
|
|
|
|
VertexBuffer * _vertexBuffer;
|
|
VertexBuffer * _varyingBuffer;
|
|
|
|
BufferDescriptor _vertexDesc;
|
|
BufferDescriptor _varyingDesc;
|
|
|
|
StencilTable const * _vertexStencilTable;
|
|
StencilTable const * _varyingStencilTable;
|
|
EvaluatorCache * _evaluatorCache;
|
|
|
|
PatchTable *_patchTable;
|
|
DeviceContext *_deviceContext;
|
|
};
|
|
|
|
} // end namespace Osd
|
|
|
|
} // end namespace OPENSUBDIV_VERSION
|
|
using namespace OPENSUBDIV_VERSION;
|
|
|
|
} // end namespace OpenSubdiv
|
|
|
|
#endif // OPENSUBDIV3_OSD_MESH_H
|