看一下幫助,裡面有 clNkph
INTERFACE r [ t m m'] ? &?q/1vLa
COAT k coat coat' lTd #bN
-k &;+-?k|
+k
c|M6<}
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. Z?%zgqTXb
+ 指只有折射沒有反射光, }oL'8-y
- 指只有反射沒有折射。