color

All BSL intrinsic functions related to color.

Return	Name	Description
float4	toGammaRGB( in float4 rgb )	Convert the color from a linear color into a Gamma color. Return pow( rgb, 0.454545 )
float4	fromGammaRGB( in float4 rgb )	Convert a Gamma color into a linear color. Return pow( rgb, 2.2 )
float	fromsRGB8( in float rgb )	Convert a 8 bit like RGB monochrome color into a linear float color. fromsRGB8(255) => 1.0
float4	fromsRGB8( in float r, in float g, in float b )	Convert a 8 bit like RGB color into a linear float color. fromsRGB8(255,0,0) => float4(1,0,0,1)
float4	fromsRGB( in float4 rgb )	Convert a sRGB color into a linear float color.
float4	fromHueToRGB( in float h )	Return the RGB color corresponding to the given Hue value. Hue is defined in the range [0,1] but value out of range are valid.
float4	fromRGBtoHSV( in float4 c )	Return the HSV color corresponding to the given RGB color.
float4	fromRGBtoHCV( in float4 c )	Return HCV ( Hue ChromaKey, Value ) color corresponding to the given RGB color.
float4	fromHSVtoRGB( in float4 c )	Return the RGB color corresponding to the given HSVcolor.
float4	fromPreMulAlpha( in float4 c )	Return the RGBA in linear color space from the Premulitplied Alpha color space
float	luminance( in [float4] c )	Return the luminance if the given color. Return dot( c.xyz, float3(0.299,0.587,0.114) ) Works with float3, float4
float	mulA( in float4 c, float a )	Multiply the alpha channel of a color by a given factor. Return float4( c.xyz, c.w*a )
[float3]	saturateColor( in [float3] c )	If color component are out of bound this function will automatically saturate according to the color luminance Works with float3, float4.
[float3]	setLuminance( in [float3] c, in float l )	Return the given color with a modified luminance Works with float3, float4.
[float3]	adjustBrightness( in [float3] c, float v )	Adjust the brightness of the input color c. Typically v should be in the range [-1,1] Works with float3, float4.
[float3]	adjustContrast( in [float3] c, float v )	Adjust the contrast of the input color c. Typically v should be in the range [-1,1] Works with float3, float4.