看一下幫助,裡面有 5C Dk5B_
INTERFACE r [ t m m'] ? 6_j |@
COAT k coat coat' _'=,c"
-k FZHA19Kb
+k JVc{vSa!rm
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. #EPC]jFk
+ 指只有折射沒有反射光, zPby+BP
- 指只有反射沒有折射。