[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 ) e;F@o3  
DECLARE CYLINDER Cylinder001 UP,0`fh(y  
BEGIN Cylinder001
rr9HC]63  
Position = 0 0 -0.3 kC LeHH|K  
Vector_axis = 0 1 0 <<n8P5pXt  
Radius = 0.2 ;'p0"\SV  
Length = 60 VFG)|Z  
Surface = SURFACE_LAMP U0)(k}Q)  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 5'oWd e  
Ep0Aogp29  
Color = 255 0 0 Mc@p~5!M  
END frGUT#9?n  
9';0vrFeM  
DECLARE SOURCE src 5Vut4px  
~ RTjcE  
BEGIN src GI6 EZ}.MZ  
geometry = Cylinder001 zRf]SZ(tO  
emission = LAMBERT 5!y3=.j  
power = 200 D(Xv shQ  
unit = Lumen M~ *
E!  
spectrum = BLACKBODY 5000 sH+]lTSX6{  
END QuF%m^aE  
DECLARE CURVE2D_CONIC MyCurve2DConic001 #Oe=G:+A  
BEGIN MyCurve2DConic001 U/jJ@8
 
Position = 0 -0.8 LM*9
b  
Orientation = 1 0 gs0,-)  
Radius = 1 >@EQarD  
Conic = 0 wBeOMA  
XMin = -1 %M'"%Yn@(y  
XMax = 1 Kz^aW  
END
w8@MUz}/#  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 M_*w)<  
BEGIN MyVolumeExtrusion001 yChC&kX Z+  
Position = 0 30 0 ZE}m\|$  
Vector_I = 1 0 0 EE%OD~u&9#  
Vector_J = 0 0 1 )FU4iN)ei  
Generatrix = MYCURVE2DCONIC001 ]~a!O  
Length = 30 #*Mk@XrV  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 QjZ}*p  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 iB]kn(2C  
Color = 255 155 255 YK}(
VF?&  
END 9N'$Y*. d<  
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描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： +mF}j=k  
光源定义了光强、散射方式、光谱， RmzK?muk  
怎么没有定义光源的出光角度？