看一下幫助,裡面有 ,?+uQXfXR
INTERFACE r [ t m m'] ? ,-DU)&dF
COAT k coat coat' 5@pLGMHT
-k ZoCk]hk
+k aN!,\D
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. C 7YS>?^]
+ 指只有折射沒有反射光, vJsg6oH
- 指只有反射沒有折射。