看一下幫助,裡面有 j kSc&
INTERFACE r [ t m m'] ? rd XCWK$E
COAT k coat coat' P]|J?$1K
-k QIR4<]/
+k t8L<x
The signs in front of k can be used to instruct ASAP to either propagate only a reflected ray (-k: t=0) at that object or to propagate only a transmitted ray (+k: r=0) at that object. Mr$# e
+ 指只有折射沒有反射光, <ED8"~_
- 指只有反射沒有折射。