看一下幫助,裡面有 0u0<)gdX
INTERFACE r [ t m m'] ? jvfVB'Tmr
COAT k coat coat' ?naPti1GX
-k V[E7mhqy
+k yWS#{|o(
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. D2hEI2S
+ 指只有折射沒有反射光, bOIVe
- 指只有反射沒有折射。