distant.h File Reference

#include "kernel/geom/geom.h"
#include "kernel/light/common.h"

Go to the source code of this file.

Functions
CCL_NAMESPACE_BEGIN ccl_device_inline void	distant_light_uv (const ccl_global KernelLight *klight, const float3 D, ccl_private float *u, ccl_private float *v)
ccl_device_inline bool	distant_light_sample (const ccl_global KernelLight *klight, const float2 rand, ccl_private LightSample *ls)
ccl_device bool	distant_light_intersect (const ccl_global KernelLight *klight, const ccl_private Ray *ccl_restrict ray, ccl_private float *t, ccl_private float *u, ccl_private float *v)
ccl_device bool	distant_light_sample_from_intersection (KernelGlobals kg, const float3 ray_D, const int lamp, ccl_private LightSample *ccl_restrict ls)
template<bool in_volume_segment>
ccl_device_forceinline bool	distant_light_tree_parameters (const float3 centroid, const float theta_e, const float t, ccl_private float &cos_theta_u, ccl_private float2 &distance, ccl_private float3 &point_to_centroid, ccl_private float &theta_d)

Function Documentation

distant_light_intersect()

ccl_device bool distant_light_intersect	(	const ccl_global KernelLight *	klight,
		const ccl_private Ray *ccl_restrict	ray,
		ccl_private float *	t,
		ccl_private float *	u,
		ccl_private float *	v )

Definition at line 59 of file distant.h.

References FLT_MAX, kernel_assert, LIGHT_DISTANT, v, and vector_angle().

Referenced by lights_intersect_impl().

distant_light_sample()

ccl_device_inline bool distant_light_sample	(	const ccl_global KernelLight *	klight,
		const float2	rand,
		ccl_private LightSample *	ls )

Definition at line 34 of file distant.h.

References distant_light_uv(), FLT_MAX, and sample_uniform_cone().

Referenced by light_sample().

distant_light_sample_from_intersection()

ccl_device bool distant_light_sample_from_intersection	(	KernelGlobals	kg,
		const float3	ray_D,
		const int	lamp,
		ccl_private LightSample *ccl_restrict	ls )

Definition at line 82 of file distant.h.

References ccl_global, distant_light_uv(), FLT_MAX, kernel_data_fetch, lamp, lamp_lightgroup(), LIGHT_DISTANT, PRIM_NONE, SHADER_USE_MIS, and vector_angle().

Referenced by integrate_distant_lights().

distant_light_tree_parameters()

template<bool in_volume_segment>

ccl_device_forceinline bool distant_light_tree_parameters	(	const float3	centroid,
		const float	theta_e,
		const float	t,
		ccl_private float &	cos_theta_u,
		ccl_private float2 &	distance,
		ccl_private float3 &	point_to_centroid,
		ccl_private float &	theta_d )

Definition at line 133 of file distant.h.

References fast_cosf(), FLT_MAX, and make_float2().

Referenced by light_tree_emitter_importance().

distant_light_uv()

CCL_NAMESPACE_BEGIN ccl_device_inline void distant_light_uv	(	const ccl_global KernelLight *	klight,
		const float3	D,
		ccl_private float *	u,
		ccl_private float *	v )

Definition at line 13 of file distant.h.

References dot(), float4_to_float3(), len, v, Transform::x, and Transform::y.

Referenced by distant_light_sample(), and distant_light_sample_from_intersection().