[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 Lk#u^|Eq7=  
DECLARE CYLINDER Cylinder001 ^x4,}'(  
BEGIN Cylinder001 1v`<Vb%"}T  
Position = 0 0 -0.3 f_D1zU^  
Vector_axis = 0 1 0 vx!nC}f"k`  
Radius = 0.2 z?j~ 2K<4  
Length = 60 bhe|q`1,E  
Surface = SURFACE_LAMP z ; :E~;  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 -k$rkKHZ(  
]C)PZZI='  
Color = 255 0 0 bB)EJCPq>  
END `Ph4!-6#  
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DECLARE SOURCE src /wCP(1Mw  
KkAk(9Q/3  
BEGIN src C+y:<oo)  
geometry = Cylinder001 =x/]2+ s  
emission = LAMBERT :Q?xNY%  
power = 200 Q CfA3*  
unit = Lumen ##k=='dR  
spectrum = BLACKBODY 5000 !^l<jrM  
END IWm|6@y  
DECLARE CURVE2D_CONIC MyCurve2DConic001 ;z
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H  
BEGIN MyCurve2DConic001 !8l4H
c8  
Position = 0 -0.8 ;"joebZ/  
Orientation = 1 0  U]e;=T:3  
Radius = 1 dxMz!  
Conic = 0 x,>@IEN7  
XMin = -1 LAMTf"a  
XMax = 1 6wnfAli.  
END [0MVsc=  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 jw(v08u >  
BEGIN MyVolumeExtrusion001 YdE$G>
&em  
Position = 0 30 0 !Otyu6&  
Vector_I = 1 0 0 $[FO(w@f  
Vector_J = 0 0 1 eW7;yH  
Generatrix = MYCURVE2DCONIC001 gR~XkU  
Length = 30 ~2rZL  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 (F$q|qZ%  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 4
7 m:z5;  
Color = 255 155 255 n!3_%K0!r&  
END #1V vK  

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粗看了一下： uWi+F)GS^K  
光源定义了光强、散射方式、光谱， w(.k6:e  
怎么没有定义光源的出光角度？