kernel_path.h File Reference

#include "kernel_differential.h"
#include "kernel_montecarlo.h"
#include "kernel_triangle.h"
#include "kernel_object.h"
#include "kernel_bvh.h"
#include "kernel_camera.h"
#include "kernel_shader.h"
#include "kernel_light.h"
#include "kernel_emission.h"
#include "kernel_random.h"

Go to the source code of this file.

Classes
struct	PathState
Typedefs
typedef CCL_NAMESPACE_BEGIN struct PathState	PathState
Functions
__device_inline void	path_state_init (PathState *state)
__device_inline void	path_state_next (KernelGlobals *kg, PathState *state, int label)
__device_inline uint	path_state_ray_visibility (KernelGlobals *kg, PathState *state)
__device_inline float	path_state_terminate_probability (KernelGlobals *kg, PathState *state, const float3 throughput)
__device_inline bool	shadow_blocked (KernelGlobals *kg, PathState *state, Ray *ray, Intersection *isect, float3 *light_L)
__device float4	kernel_path_integrate (KernelGlobals *kg, RNG *rng, int sample, Ray ray, float3 throughput)
__device void	kernel_path_trace (KernelGlobals *kg, __global float4 *buffer, __global uint *rng_state, int sample, int x, int y, int offset, int stride)

---

Typedef Documentation

typedef CCL_NAMESPACE_BEGIN struct PathState PathState

---

Function Documentation

__device float4 kernel_path_integrate	(	KernelGlobals *	kg,
		RNG *	rng,
		int	sample,
		Ray	ray,
		float3	throughput
	)

Definition at line 237 of file kernel_path.h.

References average(), Ray::D, Ray::dD, direct_emission(), ShaderData::dP, Ray::dP, PathState::flag, ShaderData::flag, FLT_MAX, i, indirect_emission(), is_zero(), kernel_data, L, label(), LABEL_TRANSMIT, make_float3(), make_float4(), ShaderData::Ng, Ray::P, ShaderData::P, PATH_RAY_CAMERA, path_rng(), path_state_init(), path_state_next(), path_state_ray_visibility(), path_state_terminate_probability(), PRNG_BASE_NUM, PRNG_BOUNCE_NUM, PRNG_BSDF, PRNG_BSDF_U, PRNG_BSDF_V, PRNG_LIGHT, PRNG_LIGHT_F, PRNG_LIGHT_U, PRNG_LIGHT_V, PRNG_TERMINATE, ray_offset(), scene_intersect(), SD_BSDF, SD_BSDF_HAS_EVAL, SD_EMISSION, SD_HOLDOUT, shader_bsdf_sample(), shader_eval_background(), shader_eval_surface(), shader_holdout_eval(), shader_release(), shader_setup_from_background(), shader_setup_from_ray(), shadow_blocked(), state, Intersection::t, Ray::t, float3::x, float3::y, and float3::z.

Referenced by kernel_path_trace().

__device void kernel_path_trace	(	KernelGlobals *	kg,
		__global float4 *	buffer,
		__global uint *	rng_state,
		int	sample,
		int	x,
		int	y,
		int	offset,
		int	stride
	)

Definition at line 385 of file kernel_path.h.

References camera_sample(), kernel_path_integrate(), L, make_float3(), path_rng(), path_rng_end(), path_rng_init(), PRNG_LENS_U, and PRNG_LENS_V.

Referenced by kernel_cpu_path_trace().

__device_inline void path_state_init

(

PathState *

state

)

Definition at line 71 of file kernel_path.h.

References PathState::bounce, PathState::diffuse_bounce, PathState::flag, PathState::glossy_bounce, PATH_RAY_CAMERA, PATH_RAY_MIS_SKIP, PATH_RAY_SINGULAR, PathState::transmission_bounce, and PathState::transparent_bounce.

Referenced by kernel_path_integrate().

__device_inline void path_state_next	(	KernelGlobals *	kg,
		PathState *	state,
		int	label
	)

Definition at line 81 of file kernel_path.h.

References PathState::bounce, PathState::diffuse_bounce, PathState::flag, PathState::glossy_bounce, kernel_assert, kernel_data, LABEL_DIFFUSE, LABEL_GLOSSY, LABEL_REFLECT, LABEL_SINGULAR, LABEL_TRANSMIT, LABEL_TRANSPARENT, PATH_RAY_CAMERA, PATH_RAY_DIFFUSE, PATH_RAY_GLOSSY, PATH_RAY_MIS_SKIP, PATH_RAY_REFLECT, PATH_RAY_SINGULAR, PATH_RAY_TRANSMIT, PATH_RAY_TRANSPARENT, PathState::transmission_bounce, and PathState::transparent_bounce.

Referenced by kernel_path_integrate().

__device_inline uint path_state_ray_visibility	(	KernelGlobals *	kg,
		PathState *	state
	)

Definition at line 133 of file kernel_path.h.

References PathState::flag, kernel_data, PATH_RAY_CAMERA, PATH_RAY_DIFFUSE, PATH_RAY_GLOSSY, and PATH_RAY_TRANSMIT.

Referenced by kernel_path_integrate().

__device_inline float path_state_terminate_probability	(	KernelGlobals *	kg,
		PathState *	state,
		const float3	throughput
	)

Definition at line 147 of file kernel_path.h.

References average(), PathState::bounce, PathState::diffuse_bounce, PathState::flag, PathState::glossy_bounce, kernel_data, PATH_RAY_TRANSPARENT, PathState::transmission_bounce, and PathState::transparent_bounce.

Referenced by kernel_path_integrate().

__device_inline bool shadow_blocked	(	KernelGlobals *	kg,
		PathState *	state,
		Ray *	ray,
		Intersection *	isect,
		float3 *	light_L
	)

Definition at line 171 of file kernel_path.h.

References average(), Ray::D, FLT_MAX, kernel_data, make_float3(), ShaderData::Ng, normalize_len(), Ray::P, ShaderData::P, PATH_RAY_SHADOW, PATH_RAY_SHADOW_OPAQUE, PATH_RAY_SHADOW_TRANSPARENT, ray_offset(), scene_intersect(), shader_bsdf_transparency(), shader_eval_surface(), shader_setup_from_ray(), Ray::t, and PathState::transparent_bounce.

Referenced by kernel_path_integrate().