[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 XM$r,}B k  
DECLARE CYLINDER Cylinder001 XCO{}wU)>  
BEGIN Cylinder001  :\1:n  
Position = 0 0 -0.3 w?A&XB+  
Vector_axis = 0 1 0 8moX"w\~_h  
Radius = 0.2 MV5'&" ,oB  
Length = 60 K'~wlO@O  
Surface = SURFACE_LAMP }zi:nSpON  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 r*<)QP^B~  
ygr[5Tl  
Color = 255 0 0 Q*mzfsgr  
END .WA
(X5  
QD%~A0  
DECLARE SOURCE src $Ml/=\EHOg  
nmp(%;<exN  
BEGIN src VL"!.^'c  
geometry = Cylinder001 oop''6`C%  
emission = LAMBERT 2/f:VB?<T  
power = 200 MNOT<(  
unit = Lumen ?y!0QAIXK  
spectrum = BLACKBODY 5000 j8?z@
iG  
END %B`MO-  
DECLARE CURVE2D_CONIC MyCurve2DConic001 E^_P  
BEGIN MyCurve2DConic001 =]yJvn"  
Position = 0 -0.8 EO$_]0yI;_  
Orientation = 1 0 $:w4_X5T  
Radius = 1 9:CJl6~N)#  
Conic = 0  3}}~(  
XMin = -1 a02;Zl  
XMax = 1 GE
XT8f(7  
END ET1/oG<@  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 HJ]\VP9Zb  
BEGIN MyVolumeExtrusion001 ^?(A|krFg  
Position = 0 30 0 6*Jd8Bva\o  
Vector_I = 1 0 0 ,T?8??bZ  
Vector_J = 0 0 1 g![]R-$  
Generatrix = MYCURVE2DCONIC001 #>dfP"}&,  
Length = 30 7yx
Ze4~|#  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 "TA r\;[  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 7(lR$,bE;=  
Color = 255 155 255 5FcKY_  
END #\*ODMk$4|  
s2L|J[Y"s  

描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： .g_BKeU  
光源定义了光强、散射方式、光谱， iX qB-4"  
怎么没有定义光源的出光角度？