看一下幫助,裡面有 G%gdI3h1Z
INTERFACE r [ t m m'] ? &/EZn xl
COAT k coat coat' XXwIp-'
-k f~d=1
+k R(Vd[EGY
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. @lB1t=
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+ 指只有折射沒有反射光, >ptI!\i}
- 指只有反射沒有折射。