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MultiExcerptNamesynopsis
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Image rollover
0facing-ratio.jpg
1no-facing-ratio.jpg

Tinted car paint effect using facing_ratio (rollover image)

 

This shader returns the absolute value of the dot product between the shading normal and the incoming ray direction. It is also named Incidenceincidence in other renderers. Unlike the utility shader used in ndoteye mode, facing_ratio works for any type of ray, not just camera rays. The returned values are always in the [0..1] range.

 

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MultiExcerptNamebias

Push or pull values by altering the slope at the beginning of the range. Bias values below 0.5 decreases decrease the slope and lower values overall.  Above Above 0.5, the slope is higher, and the value grows more quickly. A value of 0.5 has no effect.

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