[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 Y ;u<GOe  
DECLARE CYLINDER Cylinder001 aGJC1x  
BEGIN Cylinder001 Bg&i63XL$$  
Position = 0 0 -0.3 LQ(yScA@  
Vector_axis = 0 1 0 WFO4gB*  
Radius = 0.2 Y?  x,  
Length = 60 ;3d"wW]}7K  
Surface = SURFACE_LAMP (g[h 8 c  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 -~v|Rt  
S0~2{G"v  
Color = 255 0 0 0~ZFv Wv  
END
XWA:J^
 
"}q@Y=  
DECLARE SOURCE src jX3,c%aQ5e  
2"Ecd  
BEGIN src k5D%y3|9  
geometry = Cylinder001 HG+%HUO$  
emission = LAMBERT .q%WuQw  
power = 200 PJ]];MQ  
unit = Lumen Qr^|:U!;[z  
spectrum = BLACKBODY 5000  Fy`(BF\  
END n#q<`}u,
 
DECLARE CURVE2D_CONIC MyCurve2DConic001 4US"hexE<  
BEGIN MyCurve2DConic001 v}1QH  
Position = 0 -0.8 "}pNe"ok  
Orientation = 1 0 f0X_fm_q  
Radius = 1 |+iws8xK?  
Conic = 0 4 !y%O  
XMin = -1 3pv4B:0  
XMax = 1 uT}' Y)m  
END Min ^>  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 9cf:pXMi  
BEGIN MyVolumeExtrusion001 i
n~D  
Position = 0 30 0 2] zq#6ix  
Vector_I = 1 0 0 =R#Qx,  
Vector_J = 0 0 1 ep2k%?CX 1  
Generatrix = MYCURVE2DCONIC001 <_3b1VhZ  
Length = 30 0BIy>wy:  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 Z&|Kki*  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 X:6c}p%,!  
Color = 255 155 255 B[V+ND'(  
END =bHD#o|R  
/lo2y?CS*  

描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： MFb9H{LA  
光源定义了光强、散射方式、光谱， H`0|tepz  
怎么没有定义光源的出光角度？