[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 Rb=
T'x'  
DECLARE CYLINDER Cylinder001 @f442@_4  
BEGIN Cylinder001 N'_,
VB  
Position = 0 0 -0.3 xsS/)R?  
Vector_axis = 0 1 0 g(xuA^~J  
Radius = 0.2 {IEc{y7?gO  
Length = 60 A `\2]t$z  
Surface = SURFACE_LAMP }R5>ja0  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 _YzItge*  
9d{iq"*R  
Color = 255 0 0 "3CQ0  
END 7eb^^a?  
3~H_UGw  
DECLARE SOURCE src -1t"(v  
qk~ni8  
BEGIN src HV'xDy[)  
geometry = Cylinder001 9?<WRM3a>  
emission = LAMBERT 0/?V _  
power = 200 h
nha1 f  
unit = Lumen >0kn&pe7#T  
spectrum = BLACKBODY 5000 +')\,m "z  
END V9Bi2\s*  
DECLARE CURVE2D_CONIC MyCurve2DConic001 S'T&`"Mr  
BEGIN MyCurve2DConic001 uPbvN[~t  
Position = 0 -0.8 >mRA|0$  
Orientation = 1 0 6QVdnXoG/  
Radius = 1 nQ>?{"  
Conic = 0 M\zM-B  
XMin = -1 
4:<74B  
XMax = 1 yVd}1bX  
END Wr"
-~PP  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 A&_H%]{<:  
BEGIN MyVolumeExtrusion001 (+}H ih  
Position = 0 30 0 Pe[~kog,TP  
Vector_I = 1 0 0 }$5S@,  
Vector_J = 0 0 1 T+p?VngF  
Generatrix = MYCURVE2DCONIC001
$%9.qy\8  
Length = 30 [5Zs%!Z;8N  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 Z 4,
nl  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 7i?"akr4  
Color = 255 155 255 cp.c$  
END 0NlC|5ma)  
?m5@ 635  

描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： <u>l#weG,  
光源定义了光强、散射方式、光谱， %Wy$m?gD  
怎么没有定义光源的出光角度？