LuxCoreRender Textures Spectrum

Blackbody

By indicating a color temperature, you can easier get the correct light color in your scene. Some general color temperatures for common light sources are:

• Candles (1850K)
• Incandescent (2700)
• Halogen (3000K)
• Fluorescent (4200)
• The sun (5000-6500K)

The target mood of a scene can be achieved by picking the right color temperature. Westinghouselighting.com and Lovel.com has got good guides for that.
For a detailed explanation of color temperature, see for example techmind.org

Color Depth

• Output value: color

Color depth, also known as color at depth, is a texture designed to make setting absorption simpler. Normally, you set absorption by defining the color that will be absorbed, resulting in a color control that is essentially "backwards". This texture allows you to instead set the desired result color and how far the light should penetrate before reaching that color.

Parameters

• Transmission color - The target color of the transmitted light as it reaches the defined depth
• Depth - The depth in meters at which the specified transmission color is reached