[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 O{:_-eI&d  
DECLARE CYLINDER Cylinder001 x=7hOI5u  
BEGIN Cylinder001 !|}(tqt  
Position = 0 0 -0.3 /G[; kR"  
Vector_axis = 0 1 0 %P05k  
Radius = 0.2 R-CFF  
Length = 60 VbQ9o  
Surface = SURFACE_LAMP tai  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 WtlPgT;wE  
t F^|,9_<  
Color = 255 0 0 vF,\{sgW  
END |a/1mUxQ&  
Sg;c|u  
DECLARE SOURCE src "_dh6naZX  
QhV!%}7  
BEGIN src  (o`"s~)  
geometry = Cylinder001 1xAZ0X#  
emission = LAMBERT aM/sD=}  
power = 200 doM}vh)6  
unit = Lumen 2
9#&q`J  
spectrum = BLACKBODY 5000 XoI,m8A  
END Pt<lHfd  
DECLARE CURVE2D_CONIC MyCurve2DConic001 gQHE2$i>  
BEGIN MyCurve2DConic001 l'h[wwEXm{  
Position = 0 -0.8 :"BZK5{8  
Orientation = 1 0 (5AgI7I,  
Radius = 1 U)mg]o-VE  
Conic = 0 cEzWIS?pp\  
XMin = -1 cu&tdg^q  
XMax = 1 2Hltgt,  
END P5{|U"Y_  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 u`GzYG-L  
BEGIN MyVolumeExtrusion001 4'L%Wz[6  
Position = 0 30 0 i&KD)&9b#  
Vector_I = 1 0 0 =+@IpXj  
Vector_J = 0 0 1 h!#!}|Q'  
Generatrix = MYCURVE2DCONIC001 -?)` OHc^  
Length = 30 ai/VbV'|  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 |/LCwq%  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 h

]'VAt  
Color = 255 155 255 Q5R7se_  
END 9AJMm1_  
P\#z[TuHKC  

描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： DFvLCGkDk  
光源定义了光强、散射方式、光谱， 3W*O%9t7  
怎么没有定义光源的出光角度？