# Companion

Static variables and methods.

## Properties

A color used to tweak the main atmospheric scattering coefficients. Using white applies the default coefficients giving the natural blue color to the atmosphere. This color affects how heavily the corresponding wavelength is represented during scattering. The alpha channel describes the density of the atmosphere, with 1 maximum density and 0 no density.

A color used to tweak the main atmospheric scattering coefficients. Using white applies the default coefficients giving the natural blue color to the atmosphere. This color affects how heavily the corresponding wavelength is represented during scattering. The alpha channel describes the density of the atmosphere, with 1 maximum density and 0 no density.

A color used to tweak the main atmospheric scattering coefficients. Using white applies the default coefficients giving the natural blue color to the atmosphere. This color affects how heavily the corresponding wavelength is represented during scattering. The alpha channel describes the density of the atmosphere, with 1 maximum density and 0 no density.

Position of the sun center a azimuthal angle, p polar angle. The azimuthal angle indicates the position of the sun relative to 0 degree north, where degrees proceed clockwise. The polar angle indicates the height of the sun, where 0 degree is directly above, at zenith, and 90 degree at the horizon. When this property is ommitted, the sun center is directly inherited from the light position.

Position of the sun center a azimuthal angle, p polar angle. The azimuthal angle indicates the position of the sun relative to 0 degree north, where degrees proceed clockwise. The polar angle indicates the height of the sun, where 0 degree is directly above, at zenith, and 90 degree at the horizon. When this property is ommitted, the sun center is directly inherited from the light position.

Defines a radial color gradient with which to color the sky. The color values can be interpolated with an expression using `sky-radial-progress`

. The range 0, 1 for the interpolant covers a radial distance (in degrees) of 0, `sky-gradient-radius` centered at the position specified by `sky-gradient-center`

.

Position of the gradient center a azimuthal angle, p polar angle. The azimuthal angle indicates the position of the gradient center relative to 0 degree north, where degrees proceed clockwise. The polar angle indicates the height of the gradient center, where 0 degree is directly above, at zenith, and 90 degree at the horizon.

Position of the gradient center a azimuthal angle, p polar angle. The azimuthal angle indicates the position of the gradient center relative to 0 degree north, where degrees proceed clockwise. The polar angle indicates the height of the gradient center, where 0 degree is directly above, at zenith, and 90 degree at the horizon.