[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 CTa57R  
DECLARE CYLINDER Cylinder001 h]gp^?=  
BEGIN Cylinder001 (A#^l=su  
Position = 0 0 -0.3 oPM96 (  
Vector_axis = 0 1 0 ##*3bDf$-5  
Radius = 0.2 Y3b *a".X  
Length = 60 @9s$4DS  
Surface = SURFACE_LAMP D,feF9  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 7:1Lol-V  
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Color = 255 0 0 ICQKP1WFp  
END Rm( "=(  
vs4>T^8e  
DECLARE SOURCE src e"<OELA  
|{ip T SH  
BEGIN src o+'6`g'8  
geometry = Cylinder001 {wKB;?fUvk  
emission = LAMBERT 7.oM J  
power = 200 k,*XG$2h  
unit = Lumen S9.o/mr  
spectrum = BLACKBODY 5000 |L ev.,,Ph  
END 7[)E>XRE  
DECLARE CURVE2D_CONIC MyCurve2DConic001 e^voW"?%  
BEGIN MyCurve2DConic001 2+XAX:YD  
Position = 0 -0.8 $UwCMPs X  
Orientation = 1 0 Zh~'9 JH  
Radius = 1 5H^(2w  
Conic = 0 z{QqY.Gu{G  
XMin = -1 /{I$#:M  
XMax = 1 gbA_DZ  
END 2?Vd5xkt  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 $&c*'3  
BEGIN MyVolumeExtrusion001 W>r+h-kR  
Position = 0 30 0 ;$4\e)AB  
Vector_I = 1 0 0 @0''k  
Vector_J = 0 0 1 SXh-A1t  
Generatrix = MYCURVE2DCONIC001 5 qA'  
Length = 30 jH:[2N?  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 m&3xJuKih  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 i%?*@uj  
Color = 255 155 255 flx(HJK  
END Kg]J/|0\  
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粗看了一下： %
yC,^  
光源定义了光强、散射方式、光谱， ;Rf'P}"]  
怎么没有定义光源的出光角度？