[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 @$F(({?  
DECLARE CYLINDER Cylinder001 V89!C?.[]1  
BEGIN Cylinder001 &YmOXKf7  
Position = 0 0 -0.3 .KIAeCvl\  
Vector_axis = 0 1 0 LyS139P$  
Radius = 0.2 POtDge  
Length = 60 44 o5I:  
Surface = SURFACE_LAMP ;_F iiBk7(  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 _r+9S.z  
i/,G=yA  
Color = 255 0 0 YL;ZZ2A  
END }^pnwo9vV  
Z>7Oez>  
DECLARE SOURCE src \V7Hi\)  
fp:j~a>E  
BEGIN src [f:>tRdH  
geometry = Cylinder001 Ra;e#)7X  
emission = LAMBERT *J 7>6N:-  
power = 200 "k"q)5c  
unit = Lumen Iu
[^"  
spectrum = BLACKBODY 5000 'lHtz~[  
END OE}L})"  
DECLARE CURVE2D_CONIC MyCurve2DConic001 ]zhFFq`  
BEGIN MyCurve2DConic001 VCX})sp  
Position = 0 -0.8  UY+~,a  
Orientation = 1 0 R0gjx"U  
Radius = 1 9 /t}S6b{  
Conic = 0 %_@8f|# ,M  
XMin = -1 mucY+k1>g  
XMax = 1 ) ok_"wB  
END &pZ]F=.r+  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 <*3wnpj_  
BEGIN MyVolumeExtrusion001
8Nd +  
Position = 0 30 0 ?$U
k[  
Vector_I = 1 0 0 Q5Y4@  
Vector_J = 0 0 1 RD=
!No?  
Generatrix = MYCURVE2DCONIC001 ceH7Rq:4W  
Length = 30 %UV_ 3  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 oMkB!s  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 1mFc]1W  
Color = 255 155 255 {1#5\t>9yD  
END GNZQj8  
%Kw5b ;  

描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： Nr:%oD_G*  
光源定义了光强、散射方式、光谱， I]~xs0$4#  
怎么没有定义光源的出光角度？