看一下幫助,裡面有 n(#159pZ
INTERFACE r [ t m m'] ? 6T5nr
COAT k coat coat' /Ma"a
^
-k 1>SCY_Cv
+k 3./4] _p
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. YkKq}DXj
+ 指只有折射沒有反射光, j&.MT@
- 指只有反射沒有折射。