3dOP Pro provides the unique ability to set the color of light coming from each fixture, allowing the user to simulate the effect of color filters or colored leds, and the interaction of different fixture colors on a surface.

The color of the light coming from each fixture can be set with the "Red," "Green," and "Blue," value inputs or a color chooser activated with the button to the right at the bottom of the fixture tab window as shown below:

The color of light from each fixture can be reset to white at any time by using the reset button in the bottom left corner of the fixture tab window. The color chooser is shown below: