// Helper creates an EffectTransferTable3D by evaluating the specified transfer function for every location within the table.
private static EffectTransferTable3D CreateTransferTableFromFunction(ICanvasResourceCreator resourceCreator, int sizeB, int sizeG, int sizeR, Func <Vector3, Vector3> transferFunction)
{
var tableColors = new List <Color>();
var maxExtents = new Vector3(sizeR, sizeG, sizeB) - Vector3.One;
for (int r = 0; r < sizeR; r++)
{
for (int g = 0; g < sizeG; g++)
{
for (int b = 0; b < sizeB; b++)
{
Vector3 sourceColor = new Vector3(r, g, b) / maxExtents;
Vector3 outputColor = transferFunction(sourceColor);
tableColors.Add(ToColor(outputColor));
}
}
}
return(EffectTransferTable3D.CreateFromColors(resourceCreator, tableColors.ToArray(), sizeB, sizeG, sizeR));
}
public Lut3DEffectGenerator(Lut lut, ICanvasResourceCreator liveView)
{
table = EffectTransferTable3D.CreateFromColors(liveView, lut.Colors, lut.BlueNum, lut.GreenNum, lut.RedNum);
}
