} // FloatToRgbm
#endregion
#region RGBM To Float
/// <summary>
/// Decode from RGBM to float.
/// </summary>
/// <param name="rgbm">RGBM Gamma Color</param>
/// <param name="maxRange">Maximum float value</param>
public static Vector3 RgbmGammaToFloatLinear(Color rgbm, float maxRange)
{
Vector4 rgbmLinear = GammaLinearSpaceHelper.GammaToLinear(rgbm);
rgbmLinear.W *= maxRange;
rgbmLinear.X *= rgbmLinear.W;
rgbmLinear.Y *= rgbmLinear.W;
rgbmLinear.Z *= rgbmLinear.W;
return new Vector3(rgbmLinear.X, rgbmLinear.Y, rgbmLinear.Z);
} // RgbmToFloat
/// <summary>
/// Encode from float (linear) to RGBM (gamma).
/// </summary>
/// <param name="r">Red</param>
/// <param name="g">Green</param>
/// <param name="b">Blue</param>
/// <param name="maxRange">Maximum float value</param>
public static Color FloatLinearToRgbmGamma(float r, float g, float b, float maxRange)
{
// Catch negative numbers.
r = Math.Max(0, r);
g = Math.Max(0, g);
b = Math.Max(0, b);
float maxRgb = Math.Max(r, Math.Max(g, b));
float m = Math.Min(maxRgb / maxRange, 1.0f); // Catch max above MaxRange.
r = r / (m * maxRange); // between 0 to 1
g = g / (m * maxRange); // between 0 to 1
b = b / (m * maxRange); // between 0 to 1
// From linear to gamma space. Gamma space stores better lower values.
return GammaLinearSpaceHelper.LinearToGamma(new Vector4(r, g, b, m));
} // FloatToRgbm
