Class ColorUtils
A set of color manipulation utilities.
Inherited Members
Namespace: UnityEngine.Rendering
Assembly: Unity.RenderPipelines.Core.Runtime.dll
Syntax
public static class ColorUtilsFields
| Name | Description |
|---|---|
| s_LensAttenuation | Factor used for our lens system w.r.t. exposure calculation. Modifying this will lead to a change on how linear exposure multipliers are computed from EV100 values (and viceversa). s_LensAttenuation models transmission attenuation and lens vignetting. Note that according to the standard ISO 12232, a lens saturates at s_LensAttenuation = 0.78f (under ISO 100). |
| s_LightMeterCalibrationConstant | Calibration constant (K) used for our virtual reflected light meter. Modifying this will lead to a change on how average scene luminance gets mapped to exposure. |
Properties
| Name | Description |
|---|---|
| lensImperfectionExposureScale | Scale applied to exposure caused by lens imperfection. It is computed from s_LensAttenuation as follow: (78 / ( S * q )) where S = 100 and q = s_LensAttenuation |
Methods
| Name | Description |
|---|---|
| CIExyToLMS(float, float) | CIE xy chromaticity to CAT02 LMS. http://en.wikipedia.org/wiki/LMS_color_space#CAT02 |
| ColorBalanceToLMSCoeffs(float, float) | Converts white balancing parameter to LMS coefficients. |
| ComputeEV100(float, float, float) | Computes an exposure value (EV100) from physical camera settings. |
| ComputeEV100FromAvgLuminance(float) | Computes an exposure value (EV100) from an average luminance value. |
| ComputeISO(float, float, float) | Computes the required ISO to reach |
| ConvertEV100ToExposure(float) | Converts an exposure value (EV100) to a linear multiplier. |
| ConvertExposureToEV100(float) | Converts a linear multiplier to an exposure value (EV100). |
| Luminance(in Color) | Returns the luminance of the specified color. The input is considered to be in linear space with sRGB primaries and a D65 white point. |
| PrepareLiftGammaGain(in Vector4, in Vector4, in Vector4) | Pre-filters lift, gamma and gain trackball values for shader use. |
| PrepareShadowsMidtonesHighlights(in Vector4, in Vector4, in Vector4) | Pre-filters shadows, midtones and highlights trackball values for shader use. |
| PrepareSplitToning(in Vector4, in Vector4, float) | Pre-filters colors used for the split toning effect. |
| StandardIlluminantY(float) | An analytical model of chromaticity of the standard illuminant, by Judd et al. http://en.wikipedia.org/wiki/Standard_illuminant#Illuminant_series_D Slightly modifed to adjust it with the D65 white point (x=0.31271, y=0.32902). |
| ToHex(Color) | Converts a color value to its 32-bit hexadecimal representation. |
| ToRGBA(uint) | Converts a 32-bit hexadecimal value to a color value. |