pattern.h File Reference

#include "kernel/globals.h"
#include "kernel/sample/sobol_burley.h"
#include "kernel/sample/tabulated_sobol.h"
#include "util/hash.h"

Go to the source code of this file.

Functions
CCL_NAMESPACE_BEGIN ccl_device_forceinline uint3	blue_noise_indexing (KernelGlobals kg, uint pixel_index, const uint sample)
ccl_device_forceinline float	path_rng_1D (KernelGlobals kg, const uint rng_pixel, const uint sample, const int dimension)
ccl_device_forceinline float2	path_rng_2D (KernelGlobals kg, const uint rng_pixel, const int sample, const int dimension)
ccl_device_forceinline float3	path_rng_3D (KernelGlobals kg, const uint rng_pixel, const int sample, const int dimension)
ccl_device_forceinline float4	path_rng_4D (KernelGlobals kg, const uint rng_pixel, const int sample, const int dimension)
ccl_device_inline uint	path_rng_pixel_init (KernelGlobals kg, const int, const int x, const int y)
ccl_device_inline bool	sample_is_class_A (const int pattern, const int sample)

Function Documentation

blue_noise_indexing()

CCL_NAMESPACE_BEGIN ccl_device_forceinline uint3 blue_noise_indexing	(	KernelGlobals	kg,
		uint	pixel_index,
		const uint	sample )

Definition at line 34 of file pattern.h.

References ccl_device_forceinline, kernel_assert, kernel_data, make_uint3(), sample, SAMPLING_PATTERN_BLUE_NOISE_FIRST, SAMPLING_PATTERN_BLUE_NOISE_PURE, and SAMPLING_PATTERN_SOBOL_BURLEY.

Referenced by path_rng_1D(), path_rng_2D(), path_rng_3D(), and path_rng_4D().

path_rng_1D()

ccl_device_forceinline float path_rng_1D	(	KernelGlobals	kg,
		const uint	rng_pixel,
		const uint	sample,
		const int	dimension )

Definition at line 66 of file pattern.h.

References blue_noise_indexing(), ccl_device_forceinline, kernel_data, sample, SAMPLING_PATTERN_TABULATED_SOBOL, sobol_burley_sample_1D(), tabulated_sobol_sample_1D(), uint3::x, uint3::y, and uint3::z.

Referenced by path_branched_rng_1D(), and path_state_rng_1D().

path_rng_2D()

ccl_device_forceinline float2 path_rng_2D	(	KernelGlobals	kg,
		const uint	rng_pixel,
		const int	sample,
		const int	dimension )

Definition at line 83 of file pattern.h.

References blue_noise_indexing(), ccl_device_forceinline, kernel_data, make_float2, sample, SAMPLING_PATTERN_TABULATED_SOBOL, sobol_burley_sample_2D(), tabulated_sobol_sample_2D(), uint3::x, uint3::y, and uint3::z.

Referenced by integrate_camera_sample(), integrator_init_from_bake(), path_branched_rng_2D(), and path_state_rng_2D().

path_rng_3D()

ccl_device_forceinline float3 path_rng_3D	(	KernelGlobals	kg,
		const uint	rng_pixel,
		const int	sample,
		const int	dimension )

Definition at line 100 of file pattern.h.

References blue_noise_indexing(), ccl_device_forceinline, kernel_data, make_float3(), sample, SAMPLING_PATTERN_TABULATED_SOBOL, sobol_burley_sample_3D(), tabulated_sobol_sample_3D(), uint3::x, uint3::y, and uint3::z.

Referenced by integrate_camera_sample(), path_branched_rng_3D(), and path_state_rng_3D().

path_rng_4D()

ccl_device_forceinline float4 path_rng_4D	(	KernelGlobals	kg,
		const uint	rng_pixel,
		const int	sample,
		const int	dimension )

Definition at line 117 of file pattern.h.

References blue_noise_indexing(), ccl_device_forceinline, kernel_data, make_float4, sample, SAMPLING_PATTERN_TABULATED_SOBOL, sobol_burley_sample_4D(), tabulated_sobol_sample_4D(), uint3::x, uint3::y, and uint3::z.

path_rng_pixel_init()

ccl_device_inline uint path_rng_pixel_init	(	KernelGlobals	kg,
		const int	,
		const int	x,
		const int	y )

Definition at line 134 of file pattern.h.

References ccl_device_inline, hash_iqnt2d(), kernel_data, morton2d(), nested_uniform_scramble_base4(), SAMPLING_PATTERN_SOBOL_BURLEY, SAMPLING_PATTERN_TABULATED_SOBOL, x, and y.

Referenced by integrator_init_from_bake(), and integrator_init_from_camera().

sample_is_class_A()

ccl_device_inline bool sample_is_class_A	(	const int	pattern,
		const int	sample )

Splits samples into two different classes, A and B, which can be compared for variance estimation.

Definition at line 163 of file pattern.h.

References ccl_device_inline, hash_hp_seeded_uint(), popcount(), sample, SAMPLING_PATTERN_SOBOL_BURLEY, and SAMPLING_PATTERN_TABULATED_SOBOL.

Referenced by film_write_adaptive_buffer().