util_math_intersect.h File Reference

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Macros
#define	dot3(a, b)   dot(a, b)

Functions
CCL_NAMESPACE_BEGIN ccl_device bool	ray_sphere_intersect (float3 ray_P, float3 ray_D, float ray_t, float3 sphere_P, float sphere_radius, float3 *isect_P, float *isect_t)
ccl_device bool	ray_aligned_disk_intersect (float3 ray_P, float3 ray_D, float ray_t, float3 disk_P, float disk_radius, float3 *isect_P, float *isect_t)
ccl_device_forceinline bool	ray_triangle_intersect (float3 ray_P, float3 ray_dir, float ray_t, const float3 tri_a, const float3 tri_b, const float3 tri_c, float *isect_u, float *isect_v, float *isect_t)
ccl_device bool	ray_quad_intersect (float3 ray_P, float3 ray_D, float ray_mint, float ray_maxt, float3 quad_P, float3 quad_u, float3 quad_v, float3 quad_n, float3 *isect_P, float *isect_t, float *isect_u, float *isect_v, bool ellipse)

Macro Definition Documentation

dot3

#define dot3	(		a,
			b
	)		dot(a, b)

Function Documentation

ray_aligned_disk_intersect()

ccl_device bool ray_aligned_disk_intersect	(	float3	ray_P,
		float3	ray_D,
		float	ray_t,
		float3	disk_P,
		float	disk_radius,
		float3 *	isect_P,
		float *	isect_t
	)

Definition at line 58 of file util_math_intersect.h.

References dot(), len_squared(), normalize_len(), P(), t, and UNLIKELY.

Referenced by lamp_light_eval().

ray_quad_intersect()

ccl_device bool ray_quad_intersect	(	float3	ray_P,
		float3	ray_D,
		float	ray_mint,
		float	ray_maxt,
		float3	quad_P,
		float3	quad_u,
		float3	quad_v,
		float3	quad_n,
		float3 *	isect_P,
		float *	isect_t,
		float *	isect_u,
		float *	isect_v,
		bool	ellipse
	)

Definition at line 202 of file util_math_intersect.h.

References dot(), NULL, t, and v.

Referenced by lamp_light_eval().

ray_sphere_intersect()

CCL_NAMESPACE_BEGIN ccl_device bool ray_sphere_intersect	(	float3	ray_P,
		float3	ray_D,
		float	ray_t,
		float3	sphere_P,
		float	sphere_radius,
		float3 *	isect_P,
		float *	isect_t
	)

Definition at line 24 of file util_math_intersect.h.

References dot(), sqrtf, and t.

ray_triangle_intersect()

ccl_device_forceinline bool ray_triangle_intersect	(	float3	ray_P,
		float3	ray_dir,
		float	ray_t,
		const float3	tri_a,
		const float3	tri_b,
		const float3	tri_c,
		float *	isect_u,
		float *	isect_v,
		float *	isect_t
	)

Definition at line 88 of file util_math_intersect.h.

References __float_as_int(), cross(), dot(), dot3, madd(), max, min, movemask(), P(), shuffle< 1, 1, 3, 3 >(), T, UNLIKELY, V, v1, v2, float3::x, xor_signmask(), float3::y, and float3::z.

Referenced by motion_triangle_intersect(), triangle_intersect(), and triangle_light_sample().