svm_sky.h File Reference

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Functions
CCL_NAMESPACE_BEGIN ccl_device float	sky_angle_between (float thetav, float phiv, float theta, float phi)
ccl_device float	sky_perez_function (float *lam, float theta, float gamma)
ccl_device float3	sky_radiance_preetham (KernelGlobals *kg, float3 dir, float sunphi, float suntheta, float radiance_x, float radiance_y, float radiance_z, float *config_x, float *config_y, float *config_z)
ccl_device float	sky_radiance_internal (float *configuration, float theta, float gamma)
ccl_device float3	sky_radiance_hosek (KernelGlobals *kg, float3 dir, float sunphi, float suntheta, float radiance_x, float radiance_y, float radiance_z, float *config_x, float *config_y, float *config_z)
ccl_device float3	geographical_to_direction (float lat, float lon)
ccl_device float3	sky_radiance_nishita (KernelGlobals *kg, float3 dir, float *nishita_data, uint texture_id)
ccl_device void	svm_node_tex_sky (KernelGlobals *kg, ShaderData *sd, float *stack, uint4 node, int *offset)

Function Documentation

geographical_to_direction()

ccl_device float3 geographical_to_direction	(	float	lat,
		float	lon
	)

Definition at line 125 of file svm_sky.h.

References KDL::cos(), make_float3, and KDL::sin().

Referenced by sky_radiance_nishita().

sky_angle_between()

CCL_NAMESPACE_BEGIN ccl_device float sky_angle_between	(	float	thetav,
		float	phiv,
		float	theta,
		float	phi
	)

Definition at line 21 of file svm_sky.h.

References cosf, safe_acosf(), and sinf.

Referenced by sky_radiance_hosek(), and sky_radiance_preetham().

sky_perez_function()

ccl_device float sky_perez_function	(	float *	lam,
		float	theta,
		float	gamma
	)

Definition at line 31 of file svm_sky.h.

References cosf, and expf.

Referenced by sky_radiance_preetham().

sky_radiance_hosek()

ccl_device float3 sky_radiance_hosek	(	KernelGlobals *	kg,
		float3	dir,
		float	sunphi,
		float	suntheta,
		float	radiance_x,
		float	radiance_y,
		float	radiance_z,
		float *	config_x,
		float *	config_y,
		float *	config_z
	)

Definition at line 93 of file svm_sky.h.

References direction_to_spherical(), kg, M_2PI_F, M_PI_2_F, make_float3, min, sky_angle_between(), sky_radiance_internal(), float2::x, x, xyz_to_rgb(), float2::y, y, and z.

Referenced by svm_node_tex_sky().

sky_radiance_internal()

ccl_device float sky_radiance_internal	(	float *	configuration,
		float	theta,
		float	gamma
	)

Definition at line 76 of file svm_sky.h.

References cosf, expf, powf, and sqrtf.

Referenced by sky_radiance_hosek().

sky_radiance_nishita()

ccl_device float3 sky_radiance_nishita	(	KernelGlobals *	kg,
		float3	dir,
		float *	nishita_data,
		uint	texture_id
	)

Definition at line 130 of file svm_sky.h.

References direction_to_spherical(), fade(), float4_to_float3(), geographical_to_direction(), interp(), CCL_NAMESPACE_BEGIN::kernel_tex_image_interp(), kg, M_2PI_F, M_PI_2_F, M_PI_F, make_float3, precise_angle(), safe_sqrtf(), sqr(), sqrtf, float2::x, x, xyz_to_rgb(), float2::y, y, and float3::z.

Referenced by svm_node_tex_sky().

sky_radiance_preetham()

ccl_device float3 sky_radiance_preetham	(	KernelGlobals *	kg,
		float3	dir,
		float	sunphi,
		float	suntheta,
		float	radiance_x,
		float	radiance_y,
		float	radiance_z,
		float *	config_x,
		float *	config_y,
		float *	config_z
	)

Definition at line 40 of file svm_sky.h.

References direction_to_spherical(), kg, M_PI_2_F, min, sky_angle_between(), sky_perez_function(), float2::x, x, xyY_to_xyz(), xyz_to_rgb(), float2::y, Y, and y.

Referenced by svm_node_tex_sky().

svm_node_tex_sky()

ccl_device void svm_node_tex_sky	(	KernelGlobals *	kg,
		ShaderData *	sd,
		float *	stack,
		uint4	node,
		int *	offset
	)

Definition at line 212 of file svm_sky.h.

References __float_as_uint(), data, kg, node, read_node_float(), sky_radiance_hosek(), sky_radiance_nishita(), sky_radiance_preetham(), stack_load_float3(), and stack_store_float3().

Referenced by svm_eval_nodes().