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Energy Color

Light energy determines the total energy of all emitted photons and hence the strength of the caustic effect.

The light energy color is specified as RGB components and controls the total amount of energy radiated from the light source. The amount energy is then divided equally betwwen the number of photons emitted from the source.

Effectively a lower color value produces a faded effect, the default being 0.750. A value of black (0.000, 0.000, 0.000) produces no visible caustic effects as no photons are emitted if the light has zero energy. A white Colour (1.000, 1.000, 1.000) produces the brightest caustics.

Changing the values further changes the colour of the caustic effect but does not affect the color emitted by the light itself.

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Energy Color Values
Further Information
Susan Windeatt