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Real Time Rendering 2

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Real Time Rendering 2

1、The light vector l is usually defined pointing in a direction opposite to the direction the light is traveling.

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2、The surface irradiance is equal to the irradiance measured perpendicularly to l, times the cosine of the angle θi between l and n.

3、Scattering does not change the amount of light—it just causes it to change

direction.

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Real Time Rendering 2