Add Chromium-only Blender WebEngine parity work

blender-5.2.0/intern/cycles/hydra/instancer.h

@@ -0,0 +1,38 @@
+/* SPDX-FileCopyrightText: 2022 NVIDIA Corporation
+ * SPDX-FileCopyrightText: 2022 Blender Foundation
+ *
+ * SPDX-License-Identifier: Apache-2.0 */
+
+#pragma once
+
+#include "hydra/config.h"
+
+#include <pxr/base/gf/matrix4d.h>
+#include <pxr/base/gf/vec3f.h>
+#include <pxr/base/gf/vec4f.h>
+#include <pxr/base/vt/array.h>
+#include <pxr/imaging/hd/instancer.h>
+
+HDCYCLES_NAMESPACE_OPEN_SCOPE
+
+class HdCyclesInstancer final : public PXR_NS::HdInstancer {
+ public:
+  HdCyclesInstancer(PXR_NS::HdSceneDelegate *delegate, const PXR_NS::SdfPath &instancerId);
+  ~HdCyclesInstancer() override;
+
+  void Sync(PXR_NS::HdSceneDelegate *sceneDelegate,
+            PXR_NS::HdRenderParam *renderParam,
+            PXR_NS::HdDirtyBits *dirtyBits) override;
+
+  PXR_NS::VtMatrix4dArray ComputeInstanceTransforms(const PXR_NS::SdfPath &prototypeId);
+
+ private:
+  void SyncPrimvars();
+
+  PXR_NS::VtVec3fArray _translate;
+  PXR_NS::VtVec4fArray _rotate;
+  PXR_NS::VtVec3fArray _scale;
+  PXR_NS::VtMatrix4dArray _instanceTransform;
+};
+
+HDCYCLES_NAMESPACE_CLOSE_SCOPE