看一下幫助,裡面有 1
yzxA(
INTERFACE r [ t m m'] ? m1[QD26
COAT k coat coat' SpkVV/
-k 3mm`8!R
+k zA"D0fr
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. /p%K[)T(
+ 指只有折射沒有反射光, q90S>c,
- 指只有反射沒有折射。