Differential D819 Diff 2697 intern/cycles/bvh/bvh.h

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intern/cycles/bvh/bvh.h

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* BVH stored as it will be used for traversal on the rendering device. */		* BVH stored as it will be used for traversal on the rendering device. */

struct PackedBVH {		struct PackedBVH {
/* BVH nodes storage, one node is 4x int4, and contains two bounding boxes,		/* BVH nodes storage, one node is 4x int4, and contains two bounding boxes,
* and child, triangle or object indexes depending on the node type */		* and child, triangle or object indexes depending on the node type */
array<int4> nodes;		array<int4> nodes;
/* object index to BVH node index mapping for instances */		/* object index to BVH node index mapping for instances */
array<int> object_node;		array<int> object_node;
/* precomputed triangle intersection data, one triangle is 4x float4 */
array<float4> tri_woop;
/* primitive type - triangle or strand */		/* primitive type - triangle or strand */
array<int> prim_type;		array<int> prim_type;
/* visibility visibilitys for primitives */		/* visibility visibilitys for primitives */
array<uint> prim_visibility;		array<uint> prim_visibility;
/* mapping from BVH primitive index to true primitive index, as primitives		/* mapping from BVH primitive index to true primitive index, as primitives
* may be duplicated due to spatial splits. -1 for instances. */		* may be duplicated due to spatial splits. -1 for instances. */
array<int> prim_index;		array<int> prim_index;
/* mapping from BVH primitive index, to the object id of that primitive. */		/* mapping from BVH primitive index, to the object id of that primitive. */
Show All 37 Lines	protected:
BVH(const BVHParams& params, const vector<Object*>& objects);		BVH(const BVHParams& params, const vector<Object*>& objects);

/* cache */		/* cache */
bool cache_read(CacheData& key);		bool cache_read(CacheData& key);
void cache_write(CacheData& key);		void cache_write(CacheData& key);

/* triangles and strands*/		/* triangles and strands*/
void pack_primitives();		void pack_primitives();
void pack_triangle(int idx, float4 woop[3]);
void pack_curve_segment(int idx, float4 woop[3]);

/* merge instance BVH's */		/* merge instance BVH's */
void pack_instances(size_t nodes_size);		void pack_instances(size_t nodes_size);

/* for subclasses to implement */		/* for subclasses to implement */
virtual void pack_nodes(const array<int>& prims, const BVHNode *root) = 0;		virtual void pack_nodes(const array<int>& prims, const BVHNode *root) = 0;
virtual void refit_nodes() = 0;		virtual void refit_nodes() = 0;
};		};
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