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Luminance

4: Adsense

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#21 skytiger   Members   

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Posted 09 May 2013 - 11:55 AM

My attempt at mapping shader code to radiometric units:

Coutput
= Clight                        I           Radiant Intensity       I   W/sr
/ pow(distance, 2)              I * sr      Radiant Power           F   W
* dot(N, L)                     F / area    Irradiance              E   W/m²
* Calbedo                       E * BRDF    Radiance                L   W/m²/sr

Radiance Coutput is PI times greater than it should be

we can ignore this for video games ...






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