看一下幫助,裡面有 >j?uI6Uw
INTERFACE r [ t m m'] ? L$Q+R'
COAT k coat coat' 3WYW])
-k @mazwr{B
+k "8I4]'
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. !]nCeo
+ 指只有折射沒有反射光, ublY!Af
- 指只有反射沒有折射。