看一下幫助,裡面有 V\]" }V)"
INTERFACE r [ t m m'] ? <#M`5X.
COAT k coat coat' |X19fgk
-k tV;`fV
+k c{+A J8
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. o|BP$P8V
+ 指只有折射沒有反射光, 3+Qxg+<
- 指只有反射沒有折射。