1 files changed, 69 insertions, 0 deletions
diff --git a/intern/cycles/scene/image_vdb.h b/intern/cycles/scene/image_vdb.h
new file mode 100644
index 00000000000..0a43d83a24f
--- /dev/null
+++ b/intern/cycles/scene/image_vdb.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2011-2020 Blender Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __IMAGE_VDB__
+#define __IMAGE_VDB__
+
+#ifdef WITH_OPENVDB
+#  include <openvdb/openvdb.h>
+#endif
+#ifdef WITH_NANOVDB
+#  include <nanovdb/util/GridHandle.h>
+#endif
+
+#include "scene/image.h"
+
+CCL_NAMESPACE_BEGIN
+
+class VDBImageLoader : public ImageLoader {
+ public:
+  VDBImageLoader(const string &grid_name);
+  ~VDBImageLoader();
+
+  virtual bool load_metadata(const ImageDeviceFeatures &features,
+                             ImageMetaData &metadata) override;
+
+  virtual bool load_pixels(const ImageMetaData &metadata,
+                           void *pixels,
+                           const size_t pixels_size,
+                           const bool associate_alpha) override;
+
+  virtual string name() const override;
+
+  virtual bool equals(const ImageLoader &other) const override;
+
+  virtual void cleanup() override;
+
+  virtual bool is_vdb_loader() const override;
+
+#ifdef WITH_OPENVDB
+  openvdb::GridBase::ConstPtr get_grid();
+#endif
+
+ protected:
+  string grid_name;
+#ifdef WITH_OPENVDB
+  openvdb::GridBase::ConstPtr grid;
+  openvdb::CoordBBox bbox;
+#endif
+#ifdef WITH_NANOVDB
+  nanovdb::GridHandle<> nanogrid;
+#endif
+};
+
+CCL_NAMESPACE_END
+
+#endif /* __IMAGE_VDB__ */