看一下幫助,裡面有 KBg5_+l
INTERFACE r [ t m m'] ? gWGh:.*T
COAT k coat coat' F@l d#O
-k B1k;!@@14
+k Koi-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. s= bP@[Gj
+ 指只有折射沒有反射光, %0_}usrsk
- 指只有反射沒有折射。