[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 f/ZE_MN2  
DECLARE CYLINDER Cylinder001 ?x97q3I+]  
BEGIN Cylinder001 L;[*F-+jD  
Position = 0 0 -0.3 85mQH
Z8aR  
Vector_axis = 0 1 0 $BY{:#a]  
Radius = 0.2 O]>`B
{  
Length = 60 ;l'I.j  
Surface = SURFACE_LAMP )-@EUN0E>5  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 $u :=lA:N  
=j0V/=  
Color = 255 0 0 Ou^dI  
END p9
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DECLARE SOURCE src v6:DA#0  
)zN )7  
BEGIN src j4h 7q<  
geometry = Cylinder001 &ly[mBP~  
emission = LAMBERT w
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power = 200 C6n
4OU  
unit = Lumen EB#z\  
spectrum = BLACKBODY 5000 LjH];=R  
END "{k3~epYaN  
DECLARE CURVE2D_CONIC MyCurve2DConic001 hk I$ow(  
BEGIN MyCurve2DConic001 :.cX3dP@  
Position = 0 -0.8 #d~"bn q;c  
Orientation = 1 0 L2qF@!Yy=  
Radius = 1 ;%1^k/b6t  
Conic = 0 e([&Nr8h  
XMin = -1 ZLkJYZk  
XMax = 1 ^?2txLv,6  
END RA6D dqT~  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 9c6=[3)V  
BEGIN MyVolumeExtrusion001 1f=L8Dr  
Position = 0 30 0 *s^5BLI9  
Vector_I = 1 0 0 v!,O7XGH~  
Vector_J = 0 0 1 +K?h]v]%  
Generatrix = MYCURVE2DCONIC001 F,sT[C  
Length = 30 z+b~#f3  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 /dfZ>
k8  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 Y'-Lt5SCS  
Color = 255 155 255 L!5f*  
END g_=Q=y@,  
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描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： NB^.$39n  
光源定义了光强、散射方式、光谱， v zn/waw  
怎么没有定义光源的出光角度？