[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 Mj&G5R~_  
DECLARE CYLINDER Cylinder001 0$A^ .M;  
BEGIN Cylinder001 za%gD  
Position = 0 0 -0.3 <%o9*)F  
Vector_axis = 0 1 0 Y~xo=v(  
Radius = 0.2 &(7=NAQsE  
Length = 60 Gv[s86AP,  
Surface = SURFACE_LAMP pMHF u/|Pr  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 _aeIK  
1 |  
Color = 255 0 0 8`
<e\g7-  
END @)\4 $#+-  
"1YwV~M5  
DECLARE SOURCE src  nU4to  
\q
($8<  
BEGIN src beaSvhPU  
geometry = Cylinder001 }?\^^v h7  
emission = LAMBERT #M
%K82"  
power = 200 .TMLg(2hgv  
unit = Lumen IRGcE&m  
spectrum = BLACKBODY 5000 :8K}e]!c1  
END y8_$YA/g  
DECLARE CURVE2D_CONIC MyCurve2DConic001 t"zi'9$t  
BEGIN MyCurve2DConic001 {dXTj7  
Position = 0 -0.8 AsD$M*It  
Orientation = 1 0 MyZVx|7E  
Radius = 1 | C^.[)  
Conic = 0 $xT9e  
XMin = -1 ]1FLG*sB  
XMax = 1 QM![tZt%;  
END ]5K+W  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 1fvN[  
BEGIN MyVolumeExtrusion001 m]vS"AdX  
Position = 0 30 0 Y[l<fbh(}  
Vector_I = 1 0 0 q
u1+.z=|  
Vector_J = 0 0 1 Nm !~h|3  
Generatrix = MYCURVE2DCONIC001 N]eBmv$|  
Length = 30 5 w(nttYH  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 CY*o"@-o5)  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 iciKjXJ:  
Color = 255 155 255 hxzA1s%~  
END ,PmUl=  
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粗看了一下： e pp04~  
光源定义了光强、散射方式、光谱， Gbjh|j=  
怎么没有定义光源的出光角度？