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aa4

Why is L pointing from the object towards the light source and not the other way around?

jcm

How do we deal with transparent objects and caustics?

BlueCat

Why does the dot product between L and N produce the color of the surface? I can only understand it in the way of how L is projected onto N, but how this relates to color?

ddkim

What are some other ways to shade surfaces?

anon

Where is the color of the light reflected in the formula? Is it assumed to be in grayscale, since the vector would probably be the direction?

derk

How do we deal with materials which allow light to pass through them?