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Davidcannon (talk | contribs) m clean up, typo(s) fixed: For example → For example, using AWB |
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Furthermore, we have
:<math>\text{lights</}math>, which is the [[set (mathematics)|set]] of all light sources,
:<math>\hat{L}_m</math>, which is the direction vector from the point on the surface toward each light source (<math>m</math> specifies the light source),
:<math>\hat{N}</math>, which is the [[Surface normal|normal]] at this point on the surface,
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