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==Properties== | ==Properties== | ||
Copied from Green<ref name=" | Copied from Green<ref name="green2003lighting">Robin Green (2003). ''Spherical Harmonic Lighting'' URL: [http://silviojemma.com/public/papers/lighting/spherical-harmonic-lighting.pdf http://silviojemma.com/public/papers/lighting/spherical-harmonic-lighting.pdf]</ref> | ||
* Orthonormal | * Orthonormal |