[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 Ufe@G\uyI  
DECLARE CYLINDER Cylinder001 \yY2 mr  
BEGIN Cylinder001 x$24Nc1a'  
Position = 0 0 -0.3 r#WAS2.TP  
Vector_axis = 0 1 0 $(;0;!t.  
Radius = 0.2 Y!AQ7F  
Length = 60 axdRV1+s  
Surface = SURFACE_LAMP KgEfhO$W  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 jLreN#:9  
%o#|zaK  
Color = 255 0 0 Y>PC>  
END oCuKmK8  
Z_[jah  
DECLARE SOURCE src K?acRi  
XN~r d,MZ%  
BEGIN src t`vIcCXqyl  
geometry = Cylinder001 w-?Cg8bq<  
emission = LAMBERT 4GqE%n+ta~  
power = 200 LArfX,x
3i  
unit = Lumen  ~bLhI  
spectrum = BLACKBODY 5000 gR8vF  
END fnudu0k  
DECLARE CURVE2D_CONIC MyCurve2DConic001 nWv6
I&  
BEGIN MyCurve2DConic001 zNJ-JIo%  
Position = 0 -0.8 =idZvD  
Orientation = 1 0 2f.4P]s`T  
Radius = 1 F[==vte|  
Conic = 0 'A9U[|  
XMin = -1 is}Y+^j.  
XMax = 1 5`[B:<E4  
END bGa"r  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 KVCj06}j  
BEGIN MyVolumeExtrusion001 HDT-f9%}<4  
Position = 0 30 0 g+M& _n  
Vector_I = 1 0 0 ~[4zm$R^  
Vector_J = 0 0 1 Ems0"e  
Generatrix = MYCURVE2DCONIC001 "\1QJ  
Length = 30 hS+R/7  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 \x+"1  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 m6M:l"u  
Color = 255 155 255 6*=
7ifS  
END RaLc}F)9  
nwPU{4#l<  

描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： +2S#3m?1  
光源定义了光强、散射方式、光谱， Ba /^CS  
怎么没有定义光源的出光角度？