看一下幫助,裡面有 K
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INTERFACE r [ t m m'] ? mR+Jws'
COAT k coat coat' 9(, @aZ
-k w?LrJ37u
+k /ty?<24ko
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)6lu8zQ
+ 指只有折射沒有反射光, g"hJ{{<
- 指只有反射沒有折射。