[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 D%+yp  
DECLARE CYLINDER Cylinder001 ]RAh['u|  
BEGIN Cylinder001 .I_atv  
Position = 0 0 -0.3 ezw*Lo!  
Vector_axis = 0 1 0 =rymd3/  
Radius = 0.2 x8aOXN#w}  
Length = 60 ?OW!D?  
Surface = SURFACE_LAMP ]Ea-MeH  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 CUJq [  
XQ~Xls%]   
Color = 255 0 0 Q z(n41@`  
END {m!5IR  
uxyj6(  
DECLARE SOURCE src j-d&4,a:c  
ypEMx'p  
BEGIN src .xqi7vVHZ  
geometry = Cylinder001 j7)mC4o:%  
emission = LAMBERT
a/uo)']B  
power = 200 ZBDF>u@  
unit = Lumen 2d*bF.  
spectrum = BLACKBODY 5000 e1g3a1tnWl  
END umns*U%T;  
DECLARE CURVE2D_CONIC MyCurve2DConic001 GXxI=,L8F  
BEGIN MyCurve2DConic001 -i?gYF!G  
Position = 0 -0.8  <O7!(  
Orientation = 1 0 ^?RH<z  
Radius = 1 mhVLlbY|t  
Conic = 0 S?CT6moXA  
XMin = -1 |&"aZ!Kn  
XMax = 1 7d R?70Sz  
END P@PF"{S  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 keC'/\e  
BEGIN MyVolumeExtrusion001 {
@CQ (  
Position = 0 30 0 MrzD ah9UG  
Vector_I = 1 0 0 7f+@6jqD\)  
Vector_J = 0 0 1 $F^VtCx2&  
Generatrix = MYCURVE2DCONIC001 H?O5 "4a  
Length = 30 t$du|q(  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 Uj;JN}k  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 O
)`L( x  
Color = 255 155 255 Xk.OyQ@  
END ;@=3 @v  
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描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： 3v
\P6  
光源定义了光强、散射方式、光谱， S>I` y]qlR  
怎么没有定义光源的出光角度？