看一下幫助,裡面有 7l *
&Fh9;
INTERFACE r [ t m m'] ? AtQ.H-8r
COAT k coat coat' ]$smFF
-k xf,[F8 2y
+k 5m8u :6kQu
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. vJWBr:`L
+ 指只有折射沒有反射光, nCQtn%j't
- 指只有反射沒有折射。