[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 ycAQPz}=I  
DECLARE CYLINDER Cylinder001 l*m|b""].u  
BEGIN Cylinder001 c\b>4 &n  
Position = 0 0 -0.3 3MzY]J y(  
Vector_axis = 0 1 0 rzBWk  
Radius = 0.2 :A{-^qd(  
Length = 60 ? sewU9*  
Surface = SURFACE_LAMP "DN`@  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 QF>[cdl?8  
anwn!Eqk"  
Color = 255 0 0 ?GC0dN  
END O46/[{p+8  
Q8~
pIv  
DECLARE SOURCE src <C{5(=
X{  
I.<#t(io  
BEGIN src ,RHHNTB("  
geometry = Cylinder001 )yK!qu  
emission = LAMBERT -?'CUm*Od  
power = 200 g:clSN,  
unit = Lumen dCK-"#T!  
spectrum = BLACKBODY 5000 7@"
X~C  
END J@TM>R  
DECLARE CURVE2D_CONIC MyCurve2DConic001 4>E2G:  
BEGIN MyCurve2DConic001 By_Ui6:D  
Position = 0 -0.8 [Bh]\I'  
Orientation = 1 0 Z7/dRc   
Radius = 1 J?<L8;$s
7  
Conic = 0 2yZ6:U~  
XMin = -1 bcs!4  
XMax = 1 ?f`-&c;  
END aS7zG2R4H  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 )pLq^j  
BEGIN MyVolumeExtrusion001 vSA%A47G  
Position = 0 30 0 ^hgAgP
{{  
Vector_I = 1 0 0 7a<qP=J  
Vector_J = 0 0 1 ("oA{:@d  
Generatrix = MYCURVE2DCONIC001 1W g8jr's  
Length = 30 Chup %F  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 Mt Z(\&~  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 GXRjR\Ch  
Color = 255 155 255 K5lp-F  
END {\&"I|dpe  
 c$|dK  

描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： '[
8b0\  
光源定义了光强、散射方式、光谱， E3skC%}  
怎么没有定义光源的出光角度？