Three Spots of Illumination

A very simple animation demonstrating the additive interaction of the primary colours of light.

I created three hard spot lights and coloured them pure red, green and blue (with a value 255 in Maya). They were pointed directly at a pure white plane. The lights were parented to a dummy cube object which was key-framed to dolly on the +ve Z axis. The penumbra angle was then keyed to display a fuller colour gamut.

Technicalities aside, I hope this shows how, even with virtual lighting, the primary colours add up to white (ish) light.