| chenyix1 |
2008-03-12 09:37 |
看一下幫助，裡面有 lSId<v?C>
INTERFACE r [ t m m'] ? y(#F&^|
COAT k coat coat' JvUHoc$sI
-k 7f=9(Z j
+k 9.goO|~ B~
The signs in front of k can be used to instruct ASAP to either propagate only a reflected ray (-k: t=0) at that object or to propagate only a transmitted ray (+k: r=0) at that object. b!37:V\#}
+ 指只有折射沒有反射光， A%M&{S'+|X
- 指只有反射沒有折射。
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