[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 QC'Ru'8S  
DECLARE CYLINDER Cylinder001 A%#M#hD/  
BEGIN Cylinder001 <
zCWLj3  
Position = 0 0 -0.3 %P}H3;2  
Vector_axis = 0 1 0 = #-zK:4  
Radius = 0.2 G=y~)B}  
Length = 60 -1Tr!I:1  
Surface = SURFACE_LAMP 20I`F>-*  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 L9jT:2F  
a&{Y~Og?%  
Color = 255 0 0 1;[KBYUH  
END b |:Y3_>  
(uX?XX^  
DECLARE SOURCE src VL)<u"d4  
G:*vV#K  
BEGIN src s[GHDQ;!  
geometry = Cylinder001 et5lfj  
emission = LAMBERT 7R:j^"I@  
power = 200 A~xw:[zy$a  
unit = Lumen =r+K2]z,L  
spectrum = BLACKBODY 5000 *zUK3&n~I  
END <ll?rPio"  
DECLARE CURVE2D_CONIC MyCurve2DConic001 3li$)S1z  
BEGIN MyCurve2DConic001 D>k(#vYKB  
Position = 0 -0.8 xHt7/8wF  
Orientation = 1 0 '$Z)2fn7  
Radius = 1 XaCvBQ  
Conic = 0 =F|9ac9X  
XMin = -1 ~QSX 1w"  
XMax = 1 c:7V..  
END Z,"4f*2  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 \v&zsv\B@  
BEGIN MyVolumeExtrusion001 X$KTsG*  
Position = 0 30 0 a4UwhbH  
Vector_I = 1 0 0 \ Bj{.
jL  
Vector_J = 0 0 1 &|Wqzdo?#  
Generatrix = MYCURVE2DCONIC001
%}(`?  
Length = 30 $y6 <2w%b  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 A|LO!P,w  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 n UmyPQ~  
Color = 255 155 255 I?Iz5e-  
END -E1-(TS  
WzstO}?P(  

描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： ?fH1?Z\'K  
光源定义了光强、散射方式、光谱， ="78#Wfj2  
怎么没有定义光源的出光角度？