mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
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128 lines
3.9 KiB
C++
128 lines
3.9 KiB
C++
//
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// Copyright 2014 DreamWorks Animation LLC.
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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_FAR_TOPOLOGY_DESCRIPTOR_H
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#define OPENSUBDIV3_FAR_TOPOLOGY_DESCRIPTOR_H
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#include "../version.h"
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#include "../far/topologyRefiner.h"
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#include "../far/topologyRefinerFactory.h"
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#include "../far/error.h"
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#include <cassert>
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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namespace Far {
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///
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/// \brief A simple reference to raw topology data for use with TopologyRefinerFactory
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///
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/// TopologyDescriptor is a simple struct containing references to raw topology data used
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/// to construct a TopologyRefiner. It is not a requirement but a convenience for use
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/// with TopologyRefinerFactory when mesh topology is not available in an existing mesh
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/// data structure. It should be functionally complete and simple to use, but for more
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/// demanding situations, writing a custom Factory is usually warranted.
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///
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struct TopologyDescriptor {
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int numVertices,
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numFaces;
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int const * numVertsPerFace;
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Index const * vertIndicesPerFace;
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int numCreases;
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Index const * creaseVertexIndexPairs;
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float const * creaseWeights;
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int numCorners;
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Index const * cornerVertexIndices;
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float const * cornerWeights;
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int numHoles;
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Index const * holeIndices;
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bool isLeftHanded;
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// Face-varying data channel -- value indices correspond to vertex indices,
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// i.e. one for every vertex of every face:
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//
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struct FVarChannel {
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int numValues;
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Index const * valueIndices;
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FVarChannel() : numValues(0), valueIndices(0) { }
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};
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int numFVarChannels;
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FVarChannel const * fvarChannels;
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TopologyDescriptor();
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};
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//
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// Forward declarations of required TopologyRefinerFactory<TopologyDescriptor>
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// specializations (defined internally):
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//
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// @cond EXCLUDE_DOXYGEN
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template <>
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bool
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TopologyRefinerFactory<TopologyDescriptor>::resizeComponentTopology(
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TopologyRefiner & refiner, TopologyDescriptor const & desc);
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template <>
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bool
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TopologyRefinerFactory<TopologyDescriptor>::assignComponentTopology(
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TopologyRefiner & refiner, TopologyDescriptor const & desc);
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template <>
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bool
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TopologyRefinerFactory<TopologyDescriptor>::assignComponentTags(
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TopologyRefiner & refiner, TopologyDescriptor const & desc);
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template <>
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bool
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TopologyRefinerFactory<TopologyDescriptor>::assignFaceVaryingTopology(
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TopologyRefiner & refiner, TopologyDescriptor const & desc);
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template <>
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void
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TopologyRefinerFactory<TopologyDescriptor>::reportInvalidTopology(
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TopologyError errCode, char const * msg, TopologyDescriptor const & desc);
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// @endcond
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} // end namespace Far
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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 /* OPENSUBDIV3_FAR_TOPOLOGY_DESCRIPTOR_H */
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