59 lines
2.0 KiB
C++
59 lines
2.0 KiB
C++
/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0 */
|
|
|
|
#pragma once
|
|
|
|
#include "util/vector.h"
|
|
|
|
CCL_NAMESPACE_BEGIN
|
|
|
|
class BoundBox;
|
|
class BVHObjectBinning;
|
|
class BVHRange;
|
|
class BVHReference;
|
|
struct Transform;
|
|
class Object;
|
|
|
|
/* Helper class to perform calculations needed for unaligned nodes. */
|
|
class BVHUnaligned {
|
|
public:
|
|
BVHUnaligned(const vector<Object *> &objects);
|
|
|
|
/* Calculate alignment for the oriented node for a given range. */
|
|
Transform compute_aligned_space(const BVHObjectBinning &range,
|
|
const BVHReference *references) const;
|
|
Transform compute_aligned_space(const BVHRange &range, const BVHReference *references) const;
|
|
|
|
/* Calculate alignment for the oriented node for a given reference.
|
|
*
|
|
* Return true when space was calculated successfully.
|
|
*/
|
|
bool compute_aligned_space(const BVHReference &ref, Transform *aligned_space) const;
|
|
|
|
/* Calculate primitive's bounding box in given space. */
|
|
BoundBox compute_aligned_prim_boundbox(const BVHReference &prim,
|
|
const Transform &aligned_space) const;
|
|
|
|
/* Calculate bounding box in given space. */
|
|
BoundBox compute_aligned_boundbox(const BVHObjectBinning &range,
|
|
const BVHReference *references,
|
|
const Transform &aligned_space,
|
|
BoundBox *cent_bounds = nullptr) const;
|
|
BoundBox compute_aligned_boundbox(const BVHRange &range,
|
|
const BVHReference *references,
|
|
const Transform &aligned_space,
|
|
BoundBox *cent_bounds = nullptr) const;
|
|
|
|
/* Calculate affine transform for node packing.
|
|
* Bounds will be in the range of 0..1.
|
|
*/
|
|
static Transform compute_node_transform(const BoundBox &bounds, const Transform &aligned_space);
|
|
|
|
protected:
|
|
/* List of objects BVH is being created for. */
|
|
const vector<Object *> &objects_;
|
|
};
|
|
|
|
CCL_NAMESPACE_END
|