看一下幫助,裡面有 K;w]sN+I
INTERFACE r [ t m m'] ? <R_)[{ 7
COAT k coat coat' Bcb
'4*:
-k ztp2j%'
+k hC]:+.Q+
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. 1jPh0?BY
+ 指只有折射沒有反射光, ? 5OK4cR
- 指只有反射沒有折射。