Spectral Rendering

Computer Graphics · Color and Tone · spectral-rendering.yaml

Transports light at wavelengths rather than as RGB triples. Required for dispersion, fluorescence and correct metamerism under unusual illuminants, where RGB gives an answer that is simply the wrong colour.

• supersedescorrects · extends
• classifiesspecializes · part-of
• substitutes forapproximates · alternative-to
• depends onrequires · validates

Colour is the family; a dashed line is the second member of it.

This node

• correctsfixes a defect in Linear WorkflowRGB math cannot express dispersion or metamerism

Referenced by

• correctsHero Wavelength Spectral Sampling fixes a defect in thisone wavelength per path is unusably noisy

References

• Background — Spectral rendering on Wikipedia