Add Chromium-only Blender WebEngine parity work

blender-5.2.0/intern/cycles/bvh/multi.h

@@ -0,0 +1,28 @@
+/* SPDX-FileCopyrightText: 2020-2022 Blender Foundation
+ *
+ * SPDX-License-Identifier: Apache-2.0 */
+
+#pragma once
+
+#include "bvh/bvh.h"
+#include "bvh/params.h"
+
+#include <util/unique_ptr.h>
+#include <util/vector.h>
+
+CCL_NAMESPACE_BEGIN
+
+class BVHMulti : public BVH {
+ public:
+  vector<unique_ptr<BVH>> sub_bvhs;
+
+  BVHMulti(const BVHParams &params,
+           const vector<Geometry *> &geometry,
+           const vector<Object *> &objects);
+
+ protected:
+  void replace_geometry(const vector<Geometry *> &geometry,
+                        const vector<Object *> &objects) override;
+};
+
+CCL_NAMESPACE_END