sky_nishita.h File Reference

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Functions
void	SKY_single_scattering_precompute_texture (float *pixels, int stride, int width, int height, float sun_elevation, float altitude, float air_density, float aerosol_density, float ozone_density)
void	SKY_single_scattering_precompute_sun (float sun_elevation, float angular_diameter, float altitude, float air_density, float aerosol_density, float r_pixel_bottom[3], float r_pixel_top[3])
void	SKY_multiple_scattering_precompute_texture (float *pixels, int stride, int width, int height, float sun_elevation, float altitude, float air_density, float aerosol_density, float ozone_density)
void	SKY_multiple_scattering_precompute_sun (float sun_elevation, float angular_diameter, float altitude, float air_density, float aerosol_density, float ozone_density, float r_pixel_bottom[3], float r_pixel_top[3])
float	SKY_earth_intersection_angle (float altitude)

Function Documentation

SKY_earth_intersection_angle()

float SKY_earth_intersection_angle

(

float

altitude

)

Definition at line 397 of file sky_multiple_scattering.cpp.

References asinf, EARTH_RADIUS, and M_PI_2_F.

Referenced by sky_texture_precompute_nishita().

SKY_multiple_scattering_precompute_sun()

void SKY_multiple_scattering_precompute_sun	(	float	sun_elevation,
		float	angular_diameter,
		float	altitude,
		float	air_density,
		float	aerosol_density,
		float	ozone_density,
		float	r_pixel_bottom[3],
		float	r_pixel_top[3] )

Definition at line 360 of file sky_multiple_scattering.cpp.

References ATMOSPHERE_THICKNESS, clamp(), cosf, SkyMultipleScattering::get_transmittance(), M_2PI_F, M_PI_2_F, spectral_to_xyz(), SUN_SPECTRAL_IRRADIANCE, top, float3::x, float3::y, and float3::z.

Referenced by SkyTextureNode::get_sun_average_radiance(), and sky_texture_precompute_nishita().

SKY_multiple_scattering_precompute_texture()

void SKY_multiple_scattering_precompute_texture	(	float *	pixels,
		int	stride,
		int	width,
		int	height,
		float	sun_elevation,
		float	altitude,
		float	air_density,
		float	aerosol_density,
		float	ozone_density )

Definition at line 302 of file sky_multiple_scattering.cpp.

References ATMOSPHERE_RADIUS, begin(), clamp(), copysignf, cosf, EARTH_RADIUS, SkyMultipleScattering::get_inscattering(), L, l, M_2PI_F, M_PI_2_F, make_float2, make_float3(), SkyMultipleScattering::precompute_lut(), ray_sphere_intersection(), sinf, SKY_parallel_for(), spectral_to_xyz(), sqr, sun_direction(), float2::x, float3::x, x, float2::y, float3::y, y, and float3::z.

Referenced by SkyLoader::load_pixels(), and blender::nodes::node_shader_tex_sky_cc::node_shader_gpu_tex_sky().

SKY_single_scattering_precompute_sun()

void SKY_single_scattering_precompute_sun	(	float	sun_elevation,
		float	angular_diameter,
		float	altitude,
		float	air_density,
		float	aerosol_density,
		float	r_pixel_bottom[3],
		float	r_pixel_top[3] )

Definition at line 381 of file sky_single_scattering.cpp.

References clamp(), cosf, geographical_to_direction(), M_2PI_F, make_float3(), NUM_WAVELENGTHS, spec_to_xyz(), sun_radiation(), top, float3::x, float3::y, and float3::z.

Referenced by SkyTextureNode::get_sun_average_radiance(), and sky_texture_precompute_nishita().

SKY_single_scattering_precompute_texture()

void SKY_single_scattering_precompute_texture	(	float *	pixels,
		int	stride,
		int	width,
		int	height,
		float	sun_elevation,
		float	altitude,
		float	air_density,
		float	aerosol_density,
		float	ozone_density )

Definition at line 291 of file sky_single_scattering.cpp.

References begin(), clamp(), EARTH_RADIUS, fade(), geographical_to_direction(), M_2PI_F, M_PI_2_F, M_PI_F, make_float3(), NUM_WAVELENGTHS, single_scattering(), SKY_parallel_for(), spec_to_xyz(), sqr, float3::x, x, float3::y, y, and float3::z.

Referenced by SkyLoader::load_pixels(), and blender::nodes::node_shader_tex_sky_cc::node_shader_gpu_tex_sky().