UniCone

出自 DDCC TCAD TOOL Manual
於 2019年9月19日 (四) 11:48 由 CJchen (對話 | 貢獻) 所做的修訂

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Format

UniCone // float

The probability of a surface emitting light ray uniformly distributed in a cone. The axis of the cone is the normal vector of the surface. The cone angle is given by ConeAng.

Example

#UniCone, ConeAng
SurfEmit
Shell 1 
1.00000  60.00000

The probability is 100% and the cone angle is 60 degree.

Math

BSDF PDF
\frac{1}{2\pi \cos \theta} \frac{1}{2\pi}