你插入的是txt的光源文件吗?这样的文件内容有固定的格式的,比如: P3$,ca'
Line # Description Format aY j%w
A7'b Nd6f9
1 File Header !! Source file: file-name "-U3=+
]31$KBC
2 Format Version Version:1.2 >-<F)
Ygx,t|?7
3 TracePro Version TracePro Version: 2 1 0 }N| \
oWD)+5.]
4 - 7 Generation data (Varies with creation program) !Zj#.6c9
6K//1U$
8+ Ray data (See below)