看一下幫助,裡面有 q5QYp
INTERFACE r [ t m m'] ? VV?KJz=,W=
COAT k coat coat' P/0n)
Q
-k B'&%EW]
+k W**a\[~$
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. G#K=n
+ 指只有折射沒有反射光, zQD$+q5h
- 指只有反射沒有折射。