embree.h

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/* SPDX-FileCopyrightText: 2018-2022 Blender Foundation
 *
 * SPDX-License-Identifier: Apache-2.0 */
 
#ifndef __BVH_EMBREE_H__
#define __BVH_EMBREE_H__
 
#ifdef WITH_EMBREE
 
#  if EMBREE_MAJOR_VERSION >= 4
#    include <embree4/rtcore.h>
#    include <embree4/rtcore_scene.h>
#  else
#    include <embree3/rtcore.h>
#    include <embree3/rtcore_scene.h>
#  endif
 
#  include "bvh/bvh.h"
#  include "bvh/params.h"
 
#  include "util/string.h"
#  include "util/thread.h"
#  include "util/types.h"
#  include "util/vector.h"
 
CCL_NAMESPACE_BEGIN
 
class Hair;
class Mesh;
class PointCloud;
 
class BVHEmbree : public BVH {
 public:
  void build(Progress &progress,
             Stats *stats,
             RTCDevice rtc_device,
             const bool isSyclEmbreeDevice = false);
  void refit(Progress &progress);
 
#  if defined(WITH_EMBREE_GPU) && RTC_VERSION >= 40302
  RTCError offload_scenes_to_gpu(const vector<RTCScene> &scenes);
#  endif
 
  const char *get_error_string(RTCError error_code);
 
  RTCScene scene;
 
 protected:
  friend class BVH;
  BVHEmbree(const BVHParams &params,
            const vector<Geometry *> &geometry,
            const vector<Object *> &objects);
  virtual ~BVHEmbree();
 
  void add_object(Object *ob, int i);
  void add_instance(Object *ob, int i);
  void add_curves(const Object *ob, const Hair *hair, int i);
  void add_points(const Object *ob, const PointCloud *pointcloud, int i);
  void add_triangles(const Object *ob, const Mesh *mesh, int i);
 
 private:
  void set_tri_vertex_buffer(RTCGeometry geom_id, const Mesh *mesh, const bool update);
  void set_curve_vertex_buffer(RTCGeometry geom_id, const Hair *hair, const bool update);
  void set_point_vertex_buffer(RTCGeometry geom_id,
                               const PointCloud *pointcloud,
                               const bool update);
 
  RTCDevice rtc_device;
  bool rtc_device_is_sycl;
  enum RTCBuildQuality build_quality;
};
 
CCL_NAMESPACE_END
 
#endif /* WITH_EMBREE */
 
#endif /* __BVH_EMBREE_H__ */