[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 zEAx:6`c  
DECLARE CYLINDER Cylinder001 Wl?<c uw00  
BEGIN Cylinder001 MR[N6E6Mg  
Position = 0 0 -0.3 5'),)  
Vector_axis = 0 1 0 p~ mN2x]  
Radius = 0.2 *pY/5? g  
Length = 60 *-+C<2"  
Surface = SURFACE_LAMP /Lj%A  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 McO@p=M  
3@%BA(
M  
Color = 255 0 0 6_x}.bkIx=  
END F%9e@{  
5R&x{jf$  
DECLARE SOURCE src Au~+Zz|mQ  
6oPUYn-  
BEGIN src I=Gr^\x=  
geometry = Cylinder001 EolE?g@l8  
emission = LAMBERT R994R@gz  
power = 200 AEiWL.*.  
unit = Lumen >aNbp  
spectrum = BLACKBODY 5000 ~5x4?2  
END $1:}(nO,  
DECLARE CURVE2D_CONIC MyCurve2DConic001 #JHy[!4  
BEGIN MyCurve2DConic001  zZS
>+O  
Position = 0 -0.8 UUt~W  
Orientation = 1 0 9/@FAD
h  
Radius = 1 m~A[V,os  
Conic = 0 {o Q(<&Aw  
XMin = -1 4f_ZY5=  
XMax = 1 9Ba%=  
END (CKhY~,/u  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 ]<&
B BQ  
BEGIN MyVolumeExtrusion001 cij]&$;Q  
Position = 0 30 0 N>W;0u!  
Vector_I = 1 0 0 # CP9^R S  
Vector_J = 0 0 1 ]j%*"
V  
Generatrix = MYCURVE2DCONIC001 9b"}CEw  
Length = 30 "t3uW6&  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 D;16}D  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 (9WL+S  
Color = 255 155 255 (1saof*p%  
END s0X/1Cq  
Mm:a+T  

描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： j:de}!wc  
光源定义了光强、散射方式、光谱， P@! Q1pr  
怎么没有定义光源的出光角度？