[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 =%2 E|/  
DECLARE CYLINDER Cylinder001 (O?z6g  
BEGIN Cylinder001 &hV;3";  
Position = 0 0 -0.3 _QXo4z!a8  
Vector_axis = 0 1 0 Ta9;;B?$  
Radius = 0.2 7yQ r  
Length = 60 @o;m!CYB  
Surface = SURFACE_LAMP fK4laDBTO  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 I]I5!\\&[  
m1daOeZ]P  
Color = 255 0 0 X 8[T*L.  
END xl# j_d,  
+|#:*GZ  
DECLARE SOURCE src !my5-f>{(  
w`!Yr:dU  
BEGIN src ~x4Y57  
geometry = Cylinder001 *qz]vUb/0  
emission = LAMBERT 3P#1fI(c  
power = 200 mcr71j  
unit = Lumen l#Qf8*0  
spectrum = BLACKBODY 5000 Nk
=M  
END I"DV}jg6|  
DECLARE CURVE2D_CONIC MyCurve2DConic001 y{v*iH<  
BEGIN MyCurve2DConic001 -09<; U
 
Position = 0 -0.8 aQRZyE}  
Orientation = 1 0 !knYD}Rxd  
Radius = 1 $f)Y !<b
C  
Conic = 0 )dlt$VX  
XMin = -1 k]f73r  
XMax = 1 a,
}{f]  
END ](Sp0t  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 dFFB\|e;0  
BEGIN MyVolumeExtrusion001 JVXBm]  
Position = 0 30 0 }>tUkXlhJ<  
Vector_I = 1 0 0 { ET+V  
Vector_J = 0 0 1 ZnmBb_eX  
Generatrix = MYCURVE2DCONIC001 08.dV<P  
Length = 30 %mxG;w$  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 Jwa2Y0  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 @``!P&h  
Color = 255 155 255 $6Ty~.RP5H  
END BF]b\/I  
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描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： 7v=Nh  
光源定义了光强、散射方式、光谱， 0}w>8L7i{  
怎么没有定义光源的出光角度？