[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 Ceb i9R[  
DECLARE CYLINDER Cylinder001 yc}t(*A5  
BEGIN Cylinder001 <qiap2  
Position = 0 0 -0.3 ,;& PKY  
Vector_axis = 0 1 0 , |B\[0p  
Radius = 0.2 fxa^SV
   
Length = 60 XfDQx!gJ  
Surface = SURFACE_LAMP $f\-.7OD  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 +Uk.|@b=-V  
:Bc;.%  
Color = 255 0 0 )[Cm*Xxa$  
END N%i<DsK.u6  
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DECLARE SOURCE src hkc_>F]Hx  
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BEGIN src {.)D)8`<d  
geometry = Cylinder001 =ZL20<TeH  
emission = LAMBERT 0w&1wee(  
power = 200 sbIhg/:ok  
unit = Lumen 8=Ht+Br  
spectrum = BLACKBODY 5000 B75SLK:h=  
END o8"xoXK5xf  
DECLARE CURVE2D_CONIC MyCurve2DConic001 5jk4k c  
BEGIN MyCurve2DConic001 ~+ur*3X  
Position = 0 -0.8 F`3As 9b:  
Orientation = 1 0 )Jn80~U|1  
Radius = 1 Un+Jz ?Y  
Conic = 0 4 ETVyK|  
XMin = -1 );LwWKa  
XMax = 1 ?Fw/c0  
END \rO>FE  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 2J <Z4Ap  
BEGIN MyVolumeExtrusion001 mY9K
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Position = 0 30 0 #d(r^U#I  
Vector_I = 1 0 0 EeJ]> 1  
Vector_J = 0 0 1 rKq]zHgpo  
Generatrix = MYCURVE2DCONIC001 D.f=!rT7E7  
Length = 30 BW[K/l~"$:  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 ~:Nyv+g,$  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 aT[7L9Cw  
Color = 255 155 255 !ZdUW]  
END d_hcv|%  
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粗看了一下： WBI
S  
光源定义了光强、散射方式、光谱， V}?5=f'  
怎么没有定义光源的出光角度？