"GaussXX" 修訂間的差異
出自 DDCC TCAD TOOL Manual
(→Format) |
|||
| (未顯示同一使用者於中間所作的 4 次修訂) | |||
| 行 3： | 行 3： | ||
<font size=3> |
<font size=3> |
||
| − | The probability of a light ray being reflected by or transmitted through the surface according to Gaussian distribution. The central direction of Gaussian distribution can be given by either normal vector or specular vector. "R" stands for reflection and "T" stands for Transmission. "N" stands for normal and "S" stands for specular. The "sigma" values are the standard deviations for corresponding Gaussian distributions. |
+ | The probability of a light ray being reflected by or transmitted through the surface according to Gaussian distribution, and the corresponding standard deviation. The central direction of Gaussian distribution can be given by either normal vector or specular vector. "R" stands for reflection and "T" stands for Transmission. "N" stands for normal and "S" stands for specular. The "sigma" values are the standard deviations for corresponding Gaussian distributions. |
</font> |
</font> |
||
| + | |||
| + | =='''Math'''== |
||
| + | |||
| + | {| class="wikitable" |
||
| + | |- |
||
| + | ! BSDF |
||
| + | ! PDF |
||
| + | |- |
||
| + | | <math>Ae^{-(\frac{\sin \theta}{\sigma})^2}</math> |
||
| + | | <math>Ae^{-(\frac{\sin \theta}{\sigma})^2}\cos \theta </math> |
||
| + | |} |
||
於 2019年9月24日 (二) 09:39 的最新修訂
Format
GaussNR, sigma, GaussNT, sigma, GaussSR, sigma, GaussST, sigma // all float
The probability of a light ray being reflected by or transmitted through the surface according to Gaussian distribution, and the corresponding standard deviation. The central direction of Gaussian distribution can be given by either normal vector or specular vector. "R" stands for reflection and "T" stands for Transmission. "N" stands for normal and "S" stands for specular. The "sigma" values are the standard deviations for corresponding Gaussian distributions.
Math
| BSDF | |
|---|---|
|
|
