看一下幫助,裡面有 Qo3Enwap=
INTERFACE r [ t m m'] ? Zp{K_ec{
COAT k coat coat' ,tZL"
-k 8H};pu2
+k I+Yq",{%
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. _Ad63.Uq))
+ 指只有折射沒有反射光, VPO~veQ
- 指只有反射沒有折射。