88 lines
2.5 KiB
C++
88 lines
2.5 KiB
C++
/*
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* Adapted from code copyright 2009-2010 NVIDIA Corporation
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* Modifications Copyright 2011, Blender Foundation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __BVH4_H__
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#define __BVH4_H__
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#include "bvh/bvh.h"
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#include "bvh/bvh_params.h"
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#include "util/util_types.h"
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#include "util/util_vector.h"
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CCL_NAMESPACE_BEGIN
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class BVHNode;
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struct BVHStackEntry;
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class BVHParams;
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class BoundBox;
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class LeafNode;
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class Object;
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class Progress;
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#define BVH_QNODE_SIZE 8
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#define BVH_QNODE_LEAF_SIZE 1
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#define BVH_UNALIGNED_QNODE_SIZE 14
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/* BVH4
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*
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* Quad BVH, with each node having four children, to use with SIMD instructions.
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*/
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class BVH4 : public BVH {
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protected:
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/* constructor */
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friend class BVH;
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BVH4(const BVHParams& params, const vector<Object*>& objects);
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/* pack */
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void pack_nodes(const BVHNode *root);
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void pack_leaf(const BVHStackEntry& e, const LeafNode *leaf);
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void pack_inner(const BVHStackEntry& e, const BVHStackEntry *en, int num);
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void pack_aligned_inner(const BVHStackEntry& e,
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const BVHStackEntry *en,
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int num);
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void pack_aligned_node(int idx,
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const BoundBox *bounds,
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const int *child,
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const uint visibility,
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const float time_from,
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const float time_to,
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const int num);
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void pack_unaligned_inner(const BVHStackEntry& e,
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const BVHStackEntry *en,
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int num);
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void pack_unaligned_node(int idx,
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const Transform *aligned_space,
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const BoundBox *bounds,
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const int *child,
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const uint visibility,
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const float time_from,
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const float time_to,
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const int num);
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/* refit */
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void refit_nodes();
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void refit_node(int idx, bool leaf, BoundBox& bbox, uint& visibility);
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};
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CCL_NAMESPACE_END
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#endif /* __BVH4_H__ */
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