[求助]请教：光源旁边加反光罩后，在罩内无光线出来？？ [复制链接]

#define SURFACE_LAMP PERFECT_MIRROR 34.00 THZ3%o=X  
DECLARE CYLINDER Cylinder001 i/B"d,=<  
BEGIN Cylinder001 izA3INT  
Position = 0 0 -0.3 Cvy;O~)  
Vector_axis = 0 1 0 5J3kQ;5Q?  
Radius = 0.2 f}3bYF  
Length = 60 Yb*}2  
Surface = SURFACE_LAMP /2I("x]  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 e&nw&9vo  
vS
<e/e+  
Color = 255 0 0 '(*D3ysU  
END 6, ~aV  
9!h+LGs(,  
DECLARE SOURCE src vkLG<Y  
Sj+#yct-  
BEGIN src @,.H)\a4  
geometry = Cylinder001 #UIg<:  
emission = LAMBERT so?1lG  
power = 200 iqYc&}k,  
unit = Lumen e{/\znBS%  
spectrum = BLACKBODY 5000 7ac3N  
END l7
1\II  
DECLARE CURVE2D_CONIC MyCurve2DConic001 2{\Y<%.  
BEGIN MyCurve2DConic001 %yVZ|d*Q  
Position = 0 -0.8 llJ)u!=5  
Orientation = 1 0 ( d.i np(  
Radius = 1 FSk:J~Z;  
Conic = 0 3ji#
"cX  
XMin = -1 lQjq6Fl2  
XMax = 1 3 -FNd~%  
END 8*ysuL#  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 gS
]'^Sr  
BEGIN MyVolumeExtrusion001 }, H,ky  
Position = 0 30 0
b04~z&Xv  
Vector_I = 1 0 0 + h&V;  
Vector_J = 0 0 1 {iv=KF_S_  
Generatrix = MYCURVE2DCONIC001 B#}RMFIj  
Length = 30 AJ /_l;  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 '7^_$M3$\  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 A(B2XBS!?  
Color = 255 155 255 :H{8j}"  
END ~jaGf  
I{$|Ed1  

描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： bCsQWsj^NW  
光源定义了光强、散射方式、光谱， G2rv
i=8=  
怎么没有定义光源的出光角度？