看一下幫助,裡面有 X}3o
INTERFACE r [ t m m'] ? Q<pL5[00fD
COAT k coat coat' /e}NZo{)g
-k o;@T6-VH
+k @(A[H^E
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. f?A*g$v
+ 指只有折射沒有反射光, m;nT ?kv
- 指只有反射沒有折射。