檢視 UniCone 的原始碼

=='''Format'''==
 UniCone // float

<font size=3>
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.
</font>

=='''Example'''==
 #UniCone, ConeAng
 SurfEmit
 Shell 1 
 1.00000  60.00000

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

=='''Math'''==

{| class="wikitable"
|-
! BSDF
! PDF
|-
| <math>\frac{1}{2\pi \cos \theta}</math>
| <math>\frac{1}{2\pi}</math>
|}