"Lamb" 修訂間的差異
出自 DDCC TCAD TOOL Manual
(已建立頁面，內容為 "=='''Format'''== Lamb // float <font size=3> The probability of a surface emitting light ray according to Lambertian cosine law. </font> =='''Example'''== #Lamb...") |
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| − | The probability of a surface emitting light ray according to Lambertian cosine law. |
+ | The probability of a surface emitting light ray according to Lambertian cosine law. The number of photons emitted in a solid angle <math>d\Omega </math> is proportional to <math>\cos(\theta)</math>, where <math>\theta</math> is the angle between the wave vector of a light ray and the normal vector of the emission surface. |
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The probability is 100%. |
The probability is 100%. |
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| + | =='''Math'''== |
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| + | {| class="wikitable" |
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| + | |- |
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| + | ! BSDF |
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| + | ! PDF |
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| + | |- |
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| + | | <math>\frac{1}{\pi}</math> |
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| + | | <math>\frac{\cos \theta}{\pi}</math> |
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| + | |} |
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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 
is proportional to 
, where 
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
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