[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 Yo@>O98  
DECLARE CYLINDER Cylinder001 uSbOGhP  
BEGIN Cylinder001 m8$6FN  
Position = 0 0 -0.3 .g DWv  
Vector_axis = 0 1 0 <ro0}%-z>M  
Radius = 0.2 is?`tre\P  
Length = 60 l5Z=aW Q  
Surface = SURFACE_LAMP -h^FSW($-R  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 n[n0iz1-  
}!\NdQs  
Color = 255 0 0 MBs]<(RJZ  
END -[i9a:eRM  
%]nYv#K  
DECLARE SOURCE src B)/X:[  
Htl6Mr*{  
BEGIN src 2\l7=9 ]\3  
geometry = Cylinder001 %!%3jo0t
 
emission = LAMBERT J}EQ_FC"$  
power = 200 Ue
vbLt1Y  
unit = Lumen OP]=MZP|  
spectrum = BLACKBODY 5000 rmpJG|(  
END ?l`DkUo*j  
DECLARE CURVE2D_CONIC MyCurve2DConic001 5^cPG" 4@  
BEGIN MyCurve2DConic001 mfFC@~|g  
Position = 0 -0.8 'VFxg,  
Orientation = 1 0 5p"n g8nR  
Radius = 1 4Ub_;EI>  
Conic = 0 ESiNW&u2  
XMin = -1 l
>h%J,W  
XMax = 1 n|lXBCY7K  
END w7p%6m  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 \D?6_ ,O  
BEGIN MyVolumeExtrusion001 T[U&Y`3g  
Position = 0 30 0 {=IK(H  
Vector_I = 1 0 0 [%;LZZgl  
Vector_J = 0 0 1 WRZi^B8@  
Generatrix = MYCURVE2DCONIC001 ].]yqD4P  
Length = 30 'e02rqip{  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 ,& =(DJ  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 5fv eQI~!  
Color = 255 155 255 l-_voOP  
END VF!?B>  
s#;|8_L M  

粗看了一下： P.3j |)NW  
光源定义了光强、散射方式、光谱， gQ.yNe
 
怎么没有定义光源的出光角度？