kernel_mbvh.h File Reference

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Classes
struct	MBVHTask
struct	MVBHRay
Defines
#define	MBVH_OBJECT_SENTINEL   0x76543210
#define	MBVH_NODE_SIZE   8
#define	MBVH_STACK_SIZE   1024
#define	MBVH_RAY_STACK_SIZE   10000
Typedefs
typedef struct MBVHTask	MBVHTask
typedef struct MVBHRay	MBVHRay
Functions
__device float3	mbvh_inverse_direction (float3 dir)
__device void	mbvh_instance_push (KernelGlobals *kg, int object, MBVHRay *ray)
__device void	mbvh_instance_pop (KernelGlobals *kg, int object, MBVHRay *ray)
__device void	mbvh_triangle_intersect (KernelGlobals *kg, MBVHRay *ray, int object, int triAddr)
__device void	mbvh_node_intersect (KernelGlobals *kg, __m128 *traverseChild, __m128 *tHit, float3 P, float3 idir, float t, int nodeAddr)
static void	mbvh_sort_by_length (int id[4], float len[4])
__device void	scene_intersect (KernelGlobals *kg, MBVHRay *rays, int numrays)
__device void	mbvh_set_ray (MBVHRay *rays, int i, Ray *ray, float tmax)
__device bool	mbvh_get_intersection (MVBHRay *rays, int i, Intersection *isect, float tmax)
__device bool	mbvh_get_shadow (MBVHRay *rays, int i, float tmax)

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Define Documentation

#define MBVH_NODE_SIZE   8

Definition at line 22 of file kernel_mbvh.h.

Referenced by mbvh_node_intersect(), mbvh_triangle_intersect(), and scene_intersect().

#define MBVH_OBJECT_SENTINEL   0x76543210

Definition at line 21 of file kernel_mbvh.h.

Referenced by scene_intersect().

#define MBVH_RAY_STACK_SIZE   10000

Definition at line 24 of file kernel_mbvh.h.

Referenced by scene_intersect().

#define MBVH_STACK_SIZE   1024

Definition at line 23 of file kernel_mbvh.h.

Referenced by scene_intersect().

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Typedef Documentation

typedef struct MVBHRay MBVHRay

typedef struct MBVHTask MBVHTask

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Function Documentation

__device bool mbvh_get_intersection	(	MVBHRay *	rays,
		int	i,
		Intersection *	isect,
		float	tmax
	)

Definition at line 372 of file kernel_mbvh.h.

References i, MVBHRay::index, MVBHRay::object, Intersection::object, Intersection::t, MVBHRay::t, Intersection::u, MVBHRay::u, Intersection::v, and MVBHRay::v.

__device bool mbvh_get_shadow	(	MBVHRay *	rays,
		int	i,
		float	tmax
	)

Definition at line 388 of file kernel_mbvh.h.

__device void mbvh_instance_pop	(	KernelGlobals *	kg,
		int	object,
		MBVHRay *	ray
	)

Definition at line 76 of file kernel_mbvh.h.

References MVBHRay::idir, len(), mbvh_inverse_direction(), object_fetch_transform(), OBJECT_TRANSFORM, MVBHRay::origD, MVBHRay::origP, MVBHRay::P, MVBHRay::t, MVBHRay::tmax, and transform_direction().

Referenced by scene_intersect().

__device void mbvh_instance_push	(	KernelGlobals *	kg,
		int	object,
		MBVHRay *	ray
	)

Definition at line 60 of file kernel_mbvh.h.

References MVBHRay::idir, len(), mbvh_inverse_direction(), normalize(), object_fetch_transform(), OBJECT_INVERSE_TRANSFORM, MVBHRay::origD, MVBHRay::origP, MVBHRay::P, MVBHRay::t, MVBHRay::tmax, transform(), and transform_direction().

Referenced by scene_intersect().

__device float3 mbvh_inverse_direction

(

float3

dir

)

Definition at line 47 of file kernel_mbvh.h.

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

Referenced by mbvh_instance_pop(), mbvh_instance_push(), and mbvh_set_ray().

__device void mbvh_node_intersect	(	KernelGlobals *	kg,
		__m128 *	traverseChild,
		__m128 *	tHit,
		float3	P,
		float3	idir,
		float	t,
		int	nodeAddr
	)

Definition at line 127 of file kernel_mbvh.h.

References kernel_tex_fetch_m128, MBVH_NODE_SIZE, float3::x, float3::y, and float3::z.

Referenced by scene_intersect().

__device void mbvh_set_ray	(	MBVHRay *	rays,
		int	i,
		Ray *	ray,
		float	tmax
	)

Definition at line 362 of file kernel_mbvh.h.

References Ray::D, i, MVBHRay::idir, mbvh_inverse_direction(), Ray::P, MVBHRay::P, and MVBHRay::t.

static void mbvh_sort_by_length	(	int	id[4],
		float	len[4]
	)		[static]

Definition at line 164 of file kernel_mbvh.h.

References i, and swap().

Referenced by scene_intersect().

__device void mbvh_triangle_intersect	(	KernelGlobals *	kg,
		MBVHRay *	ray,
		int	object,
		int	triAddr
	)

Definition at line 88 of file kernel_mbvh.h.

References MVBHRay::idir, MVBHRay::index, kernel_tex_fetch, MBVH_NODE_SIZE, MVBHRay::object, P(), MVBHRay::P, MVBHRay::t, MVBHRay::u, MVBHRay::v, float4::w, float3::x, float4::x, float3::y, float4::y, float3::z, and float4::z.

Referenced by scene_intersect().

__device void scene_intersect	(	KernelGlobals *	kg,
		MBVHRay *	rays,
		int	numrays
	)

Definition at line 177 of file kernel_mbvh.h.

References __float_as_int(), i, MVBHRay::idir, MBVHTask::index, kernel_data, kernel_tex_fetch, len(), mbvh_instance_pop(), mbvh_instance_push(), mbvh_node_intersect(), MBVH_NODE_SIZE, MBVH_OBJECT_SENTINEL, MBVH_RAY_STACK_SIZE, mbvh_sort_by_length(), MBVH_STACK_SIZE, mbvh_triangle_intersect(), MBVHTask::node, MBVHTask::num, MBVHTask::object, MVBHRay::P, ray_offset(), MVBHRay::t, float4::w, float4::x, float4::y, and float4::z.