"LambX" 修訂間的差異

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(已建立頁面,內容為 "=='''Format'''== LambR, LambT // float, float <font size=3> The probability for a light ray being reflected by or transmitted through the surface. </font> =='''...")
 
 
(未顯示同一使用者於中間所作的 3 次修訂)
行 3: 行 3:
   
 
<font size=3>
 
<font size=3>
The probability for a light ray being reflected by or transmitted through the surface.
+
The probability of a light ray being reflected by or transmitted through the surface according to Lambertian distribution.
 
</font>
 
</font>
   
 
=='''Example'''==
 
=='''Example'''==
#Absorb
 
  +
#LambR, LambT
 
SurfScat
 
SurfScat
 
Shell 1
 
Shell 1
1.00000
 
  +
0.50000 0.50000
   
The probability is 100%.
+
The probability of Lambertian reflection/transmittion is 50%.
  +
  +
=='''Math'''==
  +
  +
{| class="wikitable"
  +
|-
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! BSDF
  +
! PDF
  +
|-
  +
| <math>\frac{1}{\pi}</math>
  +
| <math>\frac{\cos \theta}{\pi}</math>
  +
|}

於 2019年9月19日 (四) 11:30 的最新修訂

Format

LambR,   LambT // float, float

The probability of a light ray being reflected by or transmitted through the surface according to Lambertian distribution.

Example

#LambR,   LambT 
SurfScat
Shell 1 
0.50000  0.50000

The probability of Lambertian reflection/transmittion is 50%.

Math

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