1 // 2 // Copyright 2018 Pixar 3 // 4 // Licensed under the Apache License, Version 2.0 (the "Apache License") 5 // with the following modification; you may not use this file except in 6 // compliance with the Apache License and the following modification to it: 7 // Section 6. Trademarks. is deleted and replaced with: 8 // 9 // 6. Trademarks. This License does not grant permission to use the trade 10 // names, trademarks, service marks, or product names of the Licensor 11 // and its affiliates, except as required to comply with Section 4(c) of 12 // the License and to reproduce the content of the NOTICE file. 13 // 14 // You may obtain a copy of the Apache License at 15 // 16 // http://www.apache.org/licenses/LICENSE-2.0 17 // 18 // Unless required by applicable law or agreed to in writing, software 19 // distributed under the Apache License with the above modification is 20 // distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 21 // KIND, either express or implied. See the Apache License for the specific 22 // language governing permissions and limitations under the Apache License. 23 // 24 #ifndef PXR_USD_PLUGIN_USD_MTLX_READER_H 25 #define PXR_USD_PLUGIN_USD_MTLX_READER_H 26 27 #include "pxr/pxr.h" 28 #include "pxr/usd/plugin/usdMtlx/api.h" 29 #include "pxr/usd/sdf/path.h" 30 #include "pxr/base/tf/declarePtrs.h" 31 #include <MaterialXCore/Document.h> 32 33 PXR_NAMESPACE_OPEN_SCOPE 34 35 TF_DECLARE_WEAK_PTRS(UsdStage); 36 37 /// Translate the MaterialX document in \p mtlx into the stage \p stage. 38 /// \p internalPath is a namespace path where converted MaterialX objects 39 /// will live. \p externalPath is a namespace path of a prim that will 40 /// have all of the look variants. It will have references into 41 /// \p internalPath. Clients are expected to reference the prim at 42 /// \p externalPath to apply looks. 43 /// 44 /// Note that this method will traverse the materialx network following material 45 /// nodes, and does an early exit if no looks are defined in the mtlx document. 46 USDMTLX_LOCAL 47 void UsdMtlxRead(const MaterialX::ConstDocumentPtr& mtlx, 48 const UsdStagePtr& stage, 49 const SdfPath& internalPath = SdfPath("/MaterialX"), 50 const SdfPath& externalPath = SdfPath("/ModelRoot")); 51 52 /// Translate node graphs in the MaterialX document in \p mtlx into the 53 /// stage \p stage. \p internalPath is a namespace path where converted 54 /// MaterialX objects will live. 55 /// 56 /// Note that this method will traverse all the nodegraphs in the mtlx document. 57 USDMTLX_LOCAL 58 void UsdMtlxReadNodeGraphs(const MaterialX::ConstDocumentPtr& mtlx, 59 const UsdStagePtr& stage, 60 const SdfPath& internalPath = SdfPath("/MaterialX")); 61 62 PXR_NAMESPACE_CLOSE_SCOPE 63 64 #endif // PXR_USD_PLUGIN_USD_MTLX_READER_H 65