看一下幫助,裡面有 2@?\"kR"!
INTERFACE r [ t m m'] ? xf4`+[
COAT k coat coat' Wu
U_RE
-k TU O*w
+k ,_U3p ,
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. 9Fh1rZD<
+ 指只有折射沒有反射光, T]y^PT<8?
- 指只有反射沒有折射。