看一下幫助,裡面有 rU(N@i%
INTERFACE r [ t m m'] ? pnVtjWrbG
COAT k coat coat' (3W<yAM+
-k y|c]r!A
+k 8sE@?,
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. tV%M2DxS
+ 指只有折射沒有反射光, W4T>@b.
- 指只有反射沒有折射。