Produces a color that represents the radiation emitted by an ideal black body heated at the given temperature in the visible spectrum. This allows you to easily create plausible light colors based on standard temperature measurement. See the Color temperature article for more infomration. @parameters
temperature: The temperature (in kelvin) of the black body. Color temperatures over 5,000K are called cool colors (bluish white), while lower color temperatures (2,700 to 3,000 K) are called warm colors (yellowish white through red).
physicalIntensity: When set to 1, the color will emit the correct amount of energy. WARNING: Your color will become super intense.
exposure: Use exposure to adjust the amount of emited energy. Very useful if physical intensity is above zero.