1 files changed, 60 insertions, 0 deletions
diff --git a/intern/cycles/hydra/material.h b/intern/cycles/hydra/material.h
new file mode 100644
index 00000000000..15925671bb8
--- /dev/null
+++ b/intern/cycles/hydra/material.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2022 NVIDIA Corporation
+ * Copyright 2022 Blender Foundation */
+
+#pragma once
+
+#include "hydra/config.h"
+
+#include <pxr/imaging/hd/material.h>
+
+HDCYCLES_NAMESPACE_OPEN_SCOPE
+
+class HdCyclesMaterial final : public PXR_NS::HdMaterial {
+ public:
+  HdCyclesMaterial(const PXR_NS::SdfPath &sprimId);
+  ~HdCyclesMaterial() override;
+
+  PXR_NS::HdDirtyBits GetInitialDirtyBitsMask() const override;
+
+  void Sync(PXR_NS::HdSceneDelegate *sceneDelegate,
+            PXR_NS::HdRenderParam *renderParam,
+            PXR_NS::HdDirtyBits *dirtyBits) override;
+
+#if PXR_VERSION < 2011
+  void Reload() override
+  {
+  }
+#endif
+
+  void Finalize(PXR_NS::HdRenderParam *renderParam) override;
+
+  CCL_NS::Shader *GetCyclesShader() const
+  {
+    return _shader;
+  }
+
+  struct NodeDesc;
+
+ private:
+  void Initialize(PXR_NS::HdRenderParam *renderParam);
+
+  void UpdateParameters(NodeDesc &nodeDesc,
+                        const std::map<PXR_NS::TfToken, PXR_NS::VtValue> &parameters,
+                        const PXR_NS::SdfPath &nodePath);
+
+  void UpdateParameters(const PXR_NS::HdMaterialNetwork &network);
+  void UpdateParameters(const PXR_NS::HdMaterialNetwork2 &network);
+
+  void UpdateConnections(NodeDesc &nodeDesc,
+                         const PXR_NS::HdMaterialNode2 &matNode,
+                         const PXR_NS::SdfPath &nodePath,
+                         CCL_NS::ShaderGraph *shaderGraph);
+
+  void PopulateShaderGraph(const PXR_NS::HdMaterialNetwork2 &network);
+
+  CCL_NS::Shader *_shader = nullptr;
+  std::unordered_map<PXR_NS::SdfPath, NodeDesc, PXR_NS::SdfPath::Hash> _nodes;
+};
+
+HDCYCLES_NAMESPACE_CLOSE_SCOPE