Ideal Material. Place a material of an ideal color by clicking on the Ideal Material button and then clicking in either the Material A Region or the Material B Region. In the material's Properties Box, you can choose the color of the ideal material.

To see how the percentage of incident light reflected by the ideal material varies by light color, click the Open Material A Graph or Open Material B Graph buttons. The two figures show the differences between the specta of a "real" magenta material and an ideal magenta material.

To see the spectrum of light from a particular source reflected by the ideal material, use the Spectroscope tool.