Gaussian Spectrum

The Gaussian Spectrum texture is based on a Gaussian distribution spectrum.  The wavelength is used to set the center of the spectrum and the width is used to set the width of the curve.  The narrower the width, the more pure and saturated the color.

Wavelength
This represents the mean wavelength approximation between 380nm – 720nm. The lower wavelength values appear bluish while higher wavelengths (around700nm) appears reddish.

Width
Almost no color is visible when using a width of 0.000. On the other hand, a width of 1.000 means the color is spread thin over a large space and the texture will appear faint.

Power
The brightness of the texture