「NegF」：修訂間差異
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Flag for reversing the direction of emission light | Flag for reversing the direction of emission light rays. If the flag is True, then the rays are emitted toward the direction <math>-\hat n</math> where <math>\hat n</math> is the normal vector of the surface. | ||
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於 2018年8月28日 (二) 06:24 的修訂
Format
NegF // integer
Flag for reversing the direction of emission light rays. If the flag is True, then the rays are emitted toward the direction where is the normal vector of the surface.
Example
#NegF SurfEmit Shell 1 1
The direction is reversed.