kernel_light.h File Reference

#include "kernel_light_background.h"

Go to the source code of this file.

Classes
struct	LightSample

Typedefs
typedef CCL_NAMESPACE_BEGIN struct LightSample	LightSample

Functions
ccl_device_inline bool	lamp_light_sample (KernelGlobals *kg, int lamp, float randu, float randv, float3 P, LightSample *ls)
ccl_device bool	lamp_light_eval (KernelGlobals *kg, int lamp, float3 P, float3 D, float t, LightSample *ls)
ccl_device_inline bool	triangle_world_space_vertices (KernelGlobals *kg, int object, int prim, float time, float3 V[3])
ccl_device_inline float	triangle_light_pdf_area (KernelGlobals *kg, const float3 Ng, const float3 I, float t)
ccl_device_forceinline float	triangle_light_pdf (KernelGlobals *kg, ShaderData *sd, float t)
ccl_device_forceinline void	triangle_light_sample (KernelGlobals *kg, int prim, int object, float randu, float randv, float time, LightSample *ls, const float3 P)
ccl_device int	light_distribution_sample (KernelGlobals *kg, float *randu)
ccl_device_inline bool	light_select_reached_max_bounces (KernelGlobals *kg, int index, int bounce)
ccl_device_noinline bool	light_sample (KernelGlobals *kg, int lamp, float randu, float randv, float time, float3 P, int bounce, LightSample *ls)
ccl_device_inline int	light_select_num_samples (KernelGlobals *kg, int index)

Typedef Documentation

LightSample

typedef CCL_NAMESPACE_BEGIN struct LightSample LightSample

Function Documentation

lamp_light_eval()

ccl_device bool lamp_light_eval	(	KernelGlobals *	kg,
		int	lamp,
		float3	P,
		float3	D,
		float	t,
		LightSample *	ls
	)

Definition at line 179 of file kernel_light.h.

References ccl_global, LightSample::D, D(), dot(), LightSample::eval_fac, fabsf, if(), kernel_data, kernel_tex_fetch, kg, LightSample::lamp, lamp, lamp_light_pdf(), LIGHT_AREA, LIGHT_DISTANT, LIGHT_POINT, LIGHT_SPOT, light_spread_attenuation(), light_spread_clamp_area_light(), M_1_PI_F, make_float3, map_to_sphere(), LightSample::Ng, LightSample::object, LightSample::P, P(), LightSample::pdf, LightSample::prim, PRIM_NONE, ray_aligned_disk_intersect(), ray_quad_intersect(), rect_light_sample(), LightSample::shader, SHADER_USE_MIS, spot_light_attenuation(), LightSample::t, t, LightSample::type, type, LightSample::u, LightSample::v, float2::x, and float2::y.

Referenced by indirect_lamp_emission().

lamp_light_sample()

ccl_device_inline bool lamp_light_sample	(	KernelGlobals *	kg,
		int	lamp,
		float	randu,
		float	randv,
		float3	P,
		LightSample *	ls
	)

Definition at line 40 of file kernel_light.h.

References ccl_global, LightSample::D, D(), distant_light_sample(), dot(), ellipse_sample(), LightSample::eval_fac, fabsf, if(), kernel_data, kernel_tex_fetch, kg, LightSample::lamp, lamp, lamp_light_pdf(), LIGHT_BACKGROUND, LIGHT_DISTANT, LIGHT_POINT, LIGHT_SPOT, light_spread_attenuation(), light_spread_clamp_area_light(), M_1_PI_F, make_float3, map_to_sphere(), LightSample::Ng, normalize_len(), LightSample::object, LightSample::P, P(), LightSample::pdf, LightSample::prim, PRIM_NONE, rect_light_sample(), LightSample::shader, sphere_light_sample(), spot_light_attenuation(), LightSample::t, LightSample::type, type, LightSample::u, LightSample::v, float2::x, and float2::y.

Referenced by light_sample().

light_distribution_sample()

ccl_device int light_distribution_sample	(	KernelGlobals *	kg,
		float *	randu
	)

Definition at line 620 of file kernel_light.h.

References clamp(), kernel_data, kernel_tex_fetch, len, and r.

Referenced by light_sample().

light_sample()

ccl_device_noinline bool light_sample	(	KernelGlobals *	kg,
		int	lamp,
		float	randu,
		float	randv,
		float	time,
		float3	P,
		int	bounce,
		LightSample *	ls
	)

Definition at line 663 of file kernel_light.h.

References ccl_global, kernel_tex_fetch, kg, lamp, lamp_light_sample(), light_distribution_sample(), light_select_reached_max_bounces(), P(), LightSample::pdf, LightSample::shader, time, triangle_light_sample(), and UNLIKELY.

Referenced by kernel_direct_lighting(), and kernel_path_surface_connect_light().

light_select_num_samples()

ccl_device_inline int light_select_num_samples	(	KernelGlobals *	kg,
		int	index
	)

Definition at line 700 of file kernel_light.h.

References kernel_tex_fetch.

light_select_reached_max_bounces()

ccl_device_inline bool light_select_reached_max_bounces	(	KernelGlobals *	kg,
		int	index,
		int	bounce
	)

Definition at line 658 of file kernel_light.h.

References kernel_tex_fetch.

Referenced by light_sample().

triangle_light_pdf()

ccl_device_forceinline float triangle_light_pdf	(	KernelGlobals *	kg,
		ShaderData *	sd,
		float	t
	)

Definition at line 382 of file kernel_light.h.

References alpha, blender::compositor::area(), beta(), cross(), dot(), fabsf, fast_acosf(), kernel_data, kg, len, len_squared(), M_PI_F, max, N, safe_normalize(), t, triangle_area(), triangle_light_pdf_area(), triangle_world_space_vertices(), UNLIKELY, and V.

Referenced by indirect_primitive_emission().

triangle_light_pdf_area()

ccl_device_inline float triangle_light_pdf_area	(	KernelGlobals *	kg,
		const float3	Ng,
		const float3	I,
		float	t
	)

Definition at line 368 of file kernel_light.h.

References dot(), fabsf, I, kernel_data, and t.

Referenced by triangle_light_pdf(), and triangle_light_sample().

triangle_light_sample()

ccl_device_forceinline void triangle_light_sample	(	KernelGlobals *	kg,
		int	prim,
		int	object,
		float	randu,
		float	randv,
		float	time,
		LightSample *	ls,
		const float3	P
	)

Definition at line 451 of file kernel_light.h.

References A, alpha, blender::compositor::area(), B, beta(), C, cross(), LightSample::D, dot(), LightSample::eval_fac, fabsf, fast_acosf(), fast_sincosf(), fast_sinf(), kernel_data, kernel_tex_fetch, kg, LightSample::lamp, LAMP_NONE, len_squared(), LIGHT_TRIANGLE, M_PI_F, max, LightSample::Ng, normalize_len(), LightSample::object, LightSample::P, P(), LightSample::pdf, LightSample::prim, ray_triangle_intersect(), safe_normalize(), safe_normalize_len(), safe_sqrtf(), SD_OBJECT_NEGATIVE_SCALE_APPLIED, LightSample::shader, SHADER_USE_MIS, sqrtf, LightSample::t, t, time, triangle_area(), triangle_light_pdf_area(), triangle_world_space_vertices(), LightSample::type, LightSample::u, UNLIKELY, LightSample::v, V, v, and z.

Referenced by light_sample().

triangle_world_space_vertices()

ccl_device_inline bool triangle_world_space_vertices	(	KernelGlobals *	kg,
		int	object,
		int	prim,
		float	time,
		float3	V[3]
	)

Definition at line 339 of file kernel_light.h.

References kernel_tex_fetch, kg, motion_triangle_vertices(), NULL, object_fetch_transform(), OBJECT_TRANSFORM, SD_OBJECT_HAS_VERTEX_MOTION, SD_OBJECT_TRANSFORM_APPLIED, time, transform_point(), triangle_vertices(), and V.

Referenced by triangle_light_pdf(), and triangle_light_sample().