colors

func AddRGB ¶

func AddRGB(colors ...color.Color) color.Color

func Alpha ¶ added in v0.10.0

func Alpha(c color.Color) byte

func AlphaEqual ¶

func AlphaEqual(c color.Color, val byte) bool

func AlphaGreaterThan ¶

func AlphaGreaterThan(c color.Color, val byte) bool

func AlphaGreaterThanOrEqual ¶

func AlphaGreaterThanOrEqual(c color.Color, val byte) bool

func AlphaLessThan ¶

func AlphaLessThan(c color.Color, val byte) bool

func AlphaLessThanOrEqual ¶

func AlphaLessThanOrEqual(c color.Color, val byte) bool

func Blue ¶ added in v0.10.0

func Blue(c color.Color) byte

func BlueEqual ¶

func BlueEqual(c color.Color, val byte) bool

func BlueGreaterThan ¶

func BlueGreaterThan(c color.Color, val byte) bool

func BlueGreaterThanOrEqual ¶

func BlueGreaterThanOrEqual(c color.Color, val byte) bool

func BlueLessThan ¶

func BlueLessThan(c color.Color, val byte) bool

func BlueLessThanOrEqual ¶

func BlueLessThanOrEqual(c color.Color, val byte) bool

func Green ¶ added in v0.10.0

func Green(c color.Color) byte

func GreenEqual ¶

func GreenEqual(c color.Color, val byte) bool

func GreenGreaterThan ¶

func GreenGreaterThan(c color.Color, val byte) bool

func GreenGreaterThanOrEqual ¶

func GreenGreaterThanOrEqual(c color.Color, val byte) bool

func GreenLessThan ¶

func GreenLessThan(c color.Color, val byte) bool

func GreenLessThanOrEqual ¶

func GreenLessThanOrEqual(c color.Color, val byte) bool

func LinearToSRGB ¶

func LinearToSRGB(c float64) float64

From Three.js https://github.com/mrdoob/three.js/blob/e6f7c4e677cb8869502739da2640791d020d8d2f/src/math/ColorManagement.js#L12

func MultiplyRGBByConstant ¶

func MultiplyRGBByConstant(c color.Color, amount float64) color.Color

func MultiplyRGBComponents ¶ added in v0.10.0

func MultiplyRGBComponents(a, b color.Color) color.Color

func Red ¶ added in v0.10.0

func Red(c color.Color) byte

func RedEqual ¶

func RedEqual(c color.Color, val byte) bool

func RedGreaterThan ¶

func RedGreaterThan(c color.Color, val byte) bool

func RedGreaterThanOrEqual ¶

func RedGreaterThanOrEqual(c color.Color, val byte) bool

func RedLessThan ¶

func RedLessThan(c color.Color, val byte) bool

func RedLessThanOrEqual ¶

func RedLessThanOrEqual(c color.Color, val byte) bool

func SRGBToLinear ¶

func SRGBToLinear(c float64) float64

From Three.js https://github.com/mrdoob/three.js/blob/e6f7c4e677cb8869502739da2640791d020d8d2f/src/math/ColorManagement.js#L6