看一下幫助,裡面有 nMGrG
INTERFACE r [ t m m'] ? nG"n-$A?<
COAT k coat coat' q[G/}
-k ku9@&W+
+k e3eVvl5]
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. ] *-;' *
+ 指只有折射沒有反射光, Xlv#=@;O]
- 指只有反射沒有折射。