kernel_qbvh.h File Reference

Go to the source code of this file.

Defines
#define	ENTRYPOINT_SENTINEL   0x76543210
#define	QBVH_STACK_SIZE   192
#define	QBVH_NODE_SIZE   8
#define	TRI_NODE_SIZE   3
Functions
__device_inline float3	qbvh_inverse_direction (float3 dir)
__device_inline void	qbvh_instance_push (KernelGlobals *kg, int object, const Ray *ray, float3 *P, float3 *idir, float *t, const float tmax)
__device_inline void	qbvh_instance_pop (KernelGlobals *kg, int object, const Ray *ray, float3 *P, float3 *idir, float *t, const float tmax)
__device_inline bool	qbvh_bb_intersect (float3 bmin, float3 bmax, float3 P, float3 idir, float t)
__device_inline void	qbvh_node_intersect (KernelGlobals *kg, int *traverseChild, int nodeAddrChild[4], float3 P, float3 idir, float t, int nodeAddr)
__device_inline void	qbvh_triangle_intersect (KernelGlobals *kg, Intersection *isect, float3 P, float3 idir, int object, int triAddr)
__device_inline bool	scene_intersect (KernelGlobals *kg, const Ray *ray, const bool isshadowray, Intersection *isect)
__device_inline float3	ray_offset (float3 P, float3 Ng)
__device_inline float3	bvh_triangle_refine (KernelGlobals *kg, const Intersection *isect, const Ray *ray)

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Define Documentation

#define ENTRYPOINT_SENTINEL   0x76543210

Definition at line 30 of file kernel_qbvh.h.

Referenced by scene_intersect().

#define QBVH_NODE_SIZE   8

Definition at line 33 of file kernel_qbvh.h.

Referenced by qbvh_node_intersect(), and scene_intersect().

#define QBVH_STACK_SIZE   192

Definition at line 32 of file kernel_qbvh.h.

Referenced by scene_intersect().

#define TRI_NODE_SIZE   3

Definition at line 34 of file kernel_qbvh.h.

Referenced by bvh_triangle_refine(), and qbvh_triangle_intersect().

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Function Documentation

__device_inline float3 bvh_triangle_refine	(	KernelGlobals *	kg,
		const Intersection *	isect,
		const Ray *	ray
	)

Definition at line 377 of file kernel_qbvh.h.

References Ray::D, D(), kernel_tex_fetch, normalize_len(), Intersection::object, object_fetch_transform(), OBJECT_INVERSE_TRANSFORM, OBJECT_TRANSFORM, P(), Ray::P, Intersection::prim, Intersection::t, transform(), transform_direction(), TRI_NODE_SIZE, float4::w, float3::x, float4::x, float3::y, float4::y, float3::z, and float4::z.

__device_inline bool qbvh_bb_intersect	(	float3	bmin,
		float3	bmax,
		float3	P,
		float3	idir,
		float	t
	)

Definition at line 123 of file kernel_qbvh.h.

References max, max4(), min, min4(), float3::x, float3::y, and float3::z.

Referenced by qbvh_node_intersect().

__device_inline void qbvh_instance_pop	(	KernelGlobals *	kg,
		int	object,
		const Ray *	ray,
		float3 *	P,
		float3 *	idir,
		float *	t,
		const float	tmax
	)

Definition at line 66 of file kernel_qbvh.h.

References Ray::D, FLT_MAX, len(), object_fetch_transform(), OBJECT_TRANSFORM, Ray::P, qbvh_inverse_direction(), and transform_direction().

Referenced by scene_intersect().

__device_inline void qbvh_instance_push	(	KernelGlobals *	kg,
		int	object,
		const Ray *	ray,
		float3 *	P,
		float3 *	idir,
		float *	t,
		const float	tmax
	)

Definition at line 49 of file kernel_qbvh.h.

References Ray::D, FLT_MAX, len(), normalize_len(), object_fetch_transform(), OBJECT_INVERSE_TRANSFORM, Ray::P, qbvh_inverse_direction(), transform(), and transform_direction().

Referenced by scene_intersect().

__device_inline float3 qbvh_inverse_direction

(

float3

dir

)

Definition at line 36 of file kernel_qbvh.h.

References copysignf, fabsf, float3::x, float3::y, and float3::z.

Referenced by qbvh_instance_pop(), qbvh_instance_push(), and scene_intersect().

__device_inline void qbvh_node_intersect	(	KernelGlobals *	kg,
		int *	traverseChild,
		int	nodeAddrChild[4],
		float3	P,
		float3	idir,
		float	t,
		int	nodeAddr
	)

Definition at line 146 of file kernel_qbvh.h.

References __float_as_int(), kernel_tex_fetch, make_float3(), qbvh_bb_intersect(), QBVH_NODE_SIZE, float4::w, float4::x, float4::y, and float4::z.

Referenced by scene_intersect().

__device_inline void qbvh_triangle_intersect	(	KernelGlobals *	kg,
		Intersection *	isect,
		float3	P,
		float3	idir,
		int	object,
		int	triAddr
	)

Definition at line 181 of file kernel_qbvh.h.

References kernel_tex_fetch, Intersection::object, Intersection::prim, Intersection::t, TRI_NODE_SIZE, Intersection::u, Intersection::v, float4::w, float3::x, float4::x, float3::y, float4::y, float3::z, and float4::z.

Referenced by scene_intersect().

__device_inline float3 ray_offset	(	float3	P,
		float3	Ng
	)

Definition at line 332 of file kernel_qbvh.h.

References __float_as_uint(), __uint_as_float(), credits_svn_gen::e, fabsf, float3::x, float3::y, and float3::z.

__device_inline bool scene_intersect	(	KernelGlobals *	kg,
		const Ray *	ray,
		const bool	isshadowray,
		Intersection *	isect
	)

Definition at line 217 of file kernel_qbvh.h.

References __float_as_int(), Ray::D, ENTRYPOINT_SENTINEL, kernel_assert, kernel_data, kernel_tex_fetch, Intersection::object, Ray::P, Intersection::prim, qbvh_instance_pop(), qbvh_instance_push(), qbvh_inverse_direction(), qbvh_node_intersect(), QBVH_NODE_SIZE, QBVH_STACK_SIZE, qbvh_triangle_intersect(), Ray::t, Intersection::t, Intersection::u, Intersection::v, float4::x, and float4::y.