Castle Game EngineIntroduction Units Class Hierarchy Classes, Interfaces, Objects and Records Types Variables Constants Functions and Procedures Identifiers
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Unit CastleColors
Classes, Interfaces, Objects and Records Variables
Description
Color utilities, including HSV <-> RGB conversion.
Uses
Overview
Functions and Procedures
Types
Constants
Maroon : TCastleColor = (Data: ( 0.5 , 0.0 , 0.0 , 1.0)); |
Red : TCastleColor = (Data: ( 1.0 , 0.0 , 0.0 , 1.0)); |
Orange : TCastleColor = (Data: ( 1.0 , 0.65, 0.0 , 1.0)); |
Yellow : TCastleColor = (Data: ( 1.0 , 1.0 , 0.0 , 1.0)); |
Olive : TCastleColor = (Data: ( 0.5 , 0.5 , 0.0 , 1.0)); |
Purple : TCastleColor = (Data: ( 0.5 , 0.0 , 0.5 , 1.0)); |
Fuchsia: TCastleColor = (Data: ( 1.0 , 0.0 , 1.0 , 1.0)); |
White : TCastleColor = (Data: ( 1.0 , 1.0 , 1.0 , 1.0)); |
Lime : TCastleColor = (Data: ( 0.0 , 1.0 , 0.0 , 1.0)); |
Green : TCastleColor = (Data: ( 0.0 , 0.5 , 0.0 , 1.0)); |
Navy : TCastleColor = (Data: ( 0.0 , 0.0 , 0.5 , 1.0)); |
Blue : TCastleColor = (Data: ( 0.0 , 0.0 , 1.0 , 1.0)); |
Aqua : TCastleColor = (Data: ( 0.0 , 1.0 , 1.0 , 1.0)); |
Teal : TCastleColor = (Data: ( 0.0 , 0.5 , 0.5 , 1.0)); |
Black : TCastleColor = (Data: ( 0.0 , 0.0 , 0.0 , 1.0)); |
Silver : TCastleColor = (Data: ( 0.75, 0.75, 0.75, 1.0)); |
Gray : TCastleColor = (Data: ( 0.5 , 0.5 , 0.5 , 1.0)); |
LightGreen: TCastleColor = (Data: ( 0.33, 1.0 , 0.33, 1.0)); |
LightBlue : TCastleColor = (Data: ( 0.33, 0.33, 1.0 , 1.0)); |
WhiteRGB : TCastleColorRGB = (Data: ( 1.0 , 1.0 , 1.0)); |
BlackRGB : TCastleColorRGB = (Data: ( 0.0 , 0.0 , 0.0)); |
RedRGB : TCastleColorRGB = (Data: ( 1.0 , 0.0 , 0.0)); |
YellowRGB : TCastleColorRGB = (Data: ( 1.0 , 1.0 , 0.0)); |
GreenRGB : TCastleColorRGB = (Data: ( 0.0 , 0.5 , 0.0)); |
BlueRGB : TCastleColorRGB = (Data: ( 0.0 , 0.0 , 1.0)); |
GrayRGB : TCastleColorRGB = (Data: ( 0.5 , 0.5 , 0.5)); |
White3Single : TCastleColorRGB = (Data: ( 1.0 , 1.0 , 1.0)) deprecated; |
Black3Single : TCastleColorRGB = (Data: ( 0.0 , 0.0 , 0.0)) deprecated; |
Red3Single : TCastleColorRGB = (Data: ( 1.0 , 0.0 , 0.0)) deprecated; |
Green3Single : TCastleColorRGB = (Data: ( 0.0 , 0.5 , 0.0)) deprecated; |
Blue3Single : TCastleColorRGB = (Data: ( 0.0 , 0.0 , 1.0)) deprecated; |
Description
Functions and Procedures
function GrayscaleValue(const v: TCastleColorRGB): Single; inline; overload; |
Calculate color intensity, for converting color to grayscale.
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function GrayscaleValue(const v: TCastleColor): Single; inline; overload; |
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function GrayscaleValue(const v: TVector3Byte): Byte; inline; overload; |
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function GrayscaleValue(const v: TVector4Byte): Byte; inline; overload; |
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function ColorRedConvertByte(const Color: TVector3Byte): TVector3Byte; |
Place color intensity (calculated like for grayscale) into the given color component. Set the other components zero.
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function ColorRedStripByte(const Color: TVector3Byte): TVector3Byte; |
Set color values for two other channels to 0. Note that it's something entirely different than ImageConvertToChannelVar: here we preserve original channel values, and remove values on two other channels.
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function HsvToRgb(const Value: TVector3): TVector3; |
Converting between RGB and HSV. For HSV, we keep components as floating-point values, with hue in 0..6 range, saturation and value in 0..1. For RGB, one version keeps components as bytes (0..255 range), and the other as floating-point values (0..1 range).
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function LerpRgbInHsv(const A: Single; const V1, V2: TVector3): TVector3; |
Given two colors in RGB, interpolate them in HSV space.
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function ColorToHex(const V: TCastleColor): string; |
Change color into a hexadecimal notation of it (like in HTML). This color includes an alpha channel (as 4th component), and so the output contains the alpha value at the end (so it's 8 hex digits), unless alpha is opaque in which case it's not written (and result is 6 hex digits).
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function ColorRGBToHex(const V: TCastleColorRGB): string; |
Change color into a hexadecimal notation of it (like in HTML). This color has no alpha channel, so it's always 6 hex digits.
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function HexToColor(const S: string): TCastleColor; |
Convert hexadecimal color notation (like in HTML) into an RGBA color. Handles 8 or 6 digit color (RGB or RGBA with 2 letters per component; for 6 digits, alpha is assumed to be 1.0 (opaque)).
Exceptions raised
EConvertError
- In case of invalid color as string.
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function HexToColorRGB(const S: string): TCastleColorRGB; |
Convert hexadecimal color notation (like in HTML) into an RGB color. Handles 8 or 6 digit color (RGB or RGBA with 2 letters per component; for 8 digits, alpha is ignored).
Exceptions raised
EConvertError
- In case of invalid color as string.
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Types
Constants
LightGreen: TCastleColor = (Data: ( 0.33, 1.0 , 0.33, 1.0)); |
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LightBlue : TCastleColor = (Data: ( 0.33, 0.33, 1.0 , 1.0)); |
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White3Single : TCastleColorRGB = (Data: ( 1.0 , 1.0 , 1.0)) deprecated; |
Warning: this symbol is deprecated.
Deprecated, use WhiteRGB.
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Black3Single : TCastleColorRGB = (Data: ( 0.0 , 0.0 , 0.0)) deprecated; |
Warning: this symbol is deprecated.
Deprecated, use BlackRGB.
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Red3Single : TCastleColorRGB = (Data: ( 1.0 , 0.0 , 0.0)) deprecated; |
Warning: this symbol is deprecated.
Deprecated, use RedRGB.
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Green3Single : TCastleColorRGB = (Data: ( 0.0 , 0.5 , 0.0)) deprecated; |
Warning: this symbol is deprecated.
Deprecated, use GreenRGB.
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Blue3Single : TCastleColorRGB = (Data: ( 0.0 , 0.0 , 1.0)) deprecated; |
Warning: this symbol is deprecated.
Deprecated, use BlueRGB.
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