"Lamb" 修訂間的差異

出自 DDCC TCAD TOOL Manual
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(未顯示同一使用者於中間所作的 2 次修訂)
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! PDF
 
! PDF
 
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| row 1 cell 1
 
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| <math>\frac{1}{\pi}</math>
| row 1 cell 2
 
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| <math>\frac{\cos \theta}{\pi}</math>
 
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於 2019年9月19日 (四) 11:20 的最新修訂

Format

Lamb // float

The probability of a surface emitting light ray according to Lambertian cosine law. The number of photons emitted in a solid angle d\Omega is proportional to \cos(\theta), where \theta is the angle between the wave vector of a light ray and the normal vector of the emission surface.

Example

#Lamb
SurfEmit
Shell 1 
1.00000

The probability is 100%.

Math

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