[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 S)vNWBO  
DECLARE CYLINDER Cylinder001 d2(3 ,  
BEGIN Cylinder001 ]c\d][R N  
Position = 0 0 -0.3 to#N>VfD  
Vector_axis = 0 1 0 T9&bY>f?  
Radius = 0.2 JFh_3r'  
Length = 60
<^fvTb&*  
Surface = SURFACE_LAMP o6A1;e  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 Bf{c4YiF  
ZCz#B2Sf8  
Color = 255 0 0 &M*f4PeXb  
END B:=VMX~GE  
~dlp
oT  
DECLARE SOURCE src (I\qTfN4  
qotWWe#  
BEGIN src L1YiXJ,T,  
geometry = Cylinder001 l&oc/$&|[
 
emission = LAMBERT FgTWym_  
power = 200 y]b&3&  
unit = Lumen !
,&{1p  
spectrum = BLACKBODY 5000 E>Lgf&R#W  
END ,@0D_&JAl  
DECLARE CURVE2D_CONIC MyCurve2DConic001 \TnRn(Kw  
BEGIN MyCurve2DConic001 !FHm.E_>  
Position = 0 -0.8 %)p?&_  
Orientation = 1 0 p
~f=0K  
Radius = 1 -8m3L  
Conic = 0 
?yy,3:  
XMin = -1 #MAXH7[  
XMax = 1 MyaJhA6c  
END 1AAOg+Y@U"  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 ^b^}6L'Z  
BEGIN MyVolumeExtrusion001 j-TRa,4bN  
Position = 0 30 0 h"t\x}8qq  
Vector_I = 1 0 0 +wxDK A_  
Vector_J = 0 0 1 Am"e%|:  
Generatrix = MYCURVE2DCONIC001 -)Of\4kx  
Length = 30 @~8*  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 5`p>BJ+n  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 ,WtJ&S7?  
Color = 255 155 255 Z,7VOf6g  
END }0~X)Vgm(  
}) Zcw1g  

描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： %uDH_J|^  
光源定义了光强、散射方式、光谱， #jM-XK  
怎么没有定义光源的出光角度？