1 files changed, 41 insertions, 0 deletions
diff --git a/intern/cycles/hydra/curves.h b/intern/cycles/hydra/curves.h
new file mode 100644
index 00000000000..a1ac4a86715
--- /dev/null
+++ b/intern/cycles/hydra/curves.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright 2022 NVIDIA Corporation
+ * Copyright 2022 Blender Foundation */
+
+#pragma once
+
+#include "hydra/config.h"
+#include "hydra/geometry.h"
+
+#include <pxr/imaging/hd/basisCurves.h>
+
+HDCYCLES_NAMESPACE_OPEN_SCOPE
+
+class HdCyclesCurves final : public HdCyclesGeometry<PXR_NS::HdBasisCurves, CCL_NS::Hair> {
+ public:
+  HdCyclesCurves(const PXR_NS::SdfPath &rprimId
+#if PXR_VERSION < 2102
+                 ,
+                 const PXR_NS::SdfPath &instancerId = {}
+#endif
+  );
+  ~HdCyclesCurves() override;
+
+  PXR_NS::HdDirtyBits GetInitialDirtyBitsMask() const override;
+
+ private:
+  PXR_NS::HdDirtyBits _PropagateDirtyBits(PXR_NS::HdDirtyBits bits) const override;
+
+  void Populate(PXR_NS::HdSceneDelegate *sceneDelegate,
+                PXR_NS::HdDirtyBits dirtyBits,
+                bool &rebuild) override;
+
+  void PopulatePoints(PXR_NS::HdSceneDelegate *sceneDelegate);
+  void PopulateWidths(PXR_NS::HdSceneDelegate *sceneDelegate);
+
+  void PopulatePrimvars(PXR_NS::HdSceneDelegate *sceneDelegate);
+
+  void PopulateTopology(PXR_NS::HdSceneDelegate *sceneDelegate);
+};
+
+HDCYCLES_NAMESPACE_CLOSE_SCOPE