Shading Methods
Because the rendering method differs from both ray tracing and scan line rendering, photon tracing needs its own set of shaders.
- Surface shader - dictates how the photon rays reflect or refract.
- Absorption shader - tells the ray if the photon should be absorbed or not.
- Emission shader - when called it emits a photon ray
Read more about this topic: Photon Tracing
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“It would be some advantage to live a primitive and frontier life, though in the midst of an outward civilization, if only to learn what are the gross necessaries of life and what methods have been taken to obtain them.”
—Henry David Thoreau (1817–1862)