看一下幫助,裡面有 }7iWm XlI
INTERFACE r [ t m m'] ? %H=d_Nm{
COAT k coat coat' PW(4-H
-k pvL)BD
+k f49pIcAq
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. Jy&O4g/'5
+ 指只有折射沒有反射光, q$)$?"
- 指只有反射沒有折射。