Parameters
- Min
- The pixel value to be mapped to the first element of the Colours array
- Max
- The pixel value to be mapped to the last element of the Colours array
- Colours
- An array of Color values
The alpha values are central to Volume rendering, and it is important that "transparent" pixel ranges should be to colours with an alpha value < 1.
Pixel values less than the Min value are mapped to the first colour in the array and those greater than the Max value are mapped to the last value.