[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 _p4]\LA  
DECLARE CYLINDER Cylinder001 B(1-u!pz  
BEGIN Cylinder001 2? yo  
Position = 0 0 -0.3 e(/F:ZEh  
Vector_axis = 0 1 0 hsrf2Xw[  
Radius = 0.2 mrRid}2  
Length = 60 g/f6N
z  
Surface = SURFACE_LAMP aOd#f:{y  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 ]w>o=<?b  
V'{\g|)  
Color = 255 0 0 wHs1ge(  
END vTx>z\7q,  
jr0j0$BF  
DECLARE SOURCE src 11"r FZ  
uarfH]T{  
BEGIN src L~t< 0\r  
geometry = Cylinder001 sw}O g`U  
emission = LAMBERT QPB,B>Z  
power = 200 |?VJf3A  
unit = Lumen p&RC#wYu  
spectrum = BLACKBODY 5000 B%uY/Mwz$  
END -O\i^?lD;
 
DECLARE CURVE2D_CONIC MyCurve2DConic001 Kw`CN  
BEGIN MyCurve2DConic001 F^bY]\-5  
Position = 0 -0.8 % Q6 za'25  
Orientation = 1 0 4zS0kk;+  
Radius = 1 ;DK%!."%  
Conic = 0 :Q"|%#P  
XMin = -1 Gu~*ZKyJ  
XMax = 1 l~
;>KjZg  
END pAatv;Ex  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 tjFX(;^[  
BEGIN MyVolumeExtrusion001 e1-tpD:J  
Position = 0 30 0 y8s!sO  
Vector_I = 1 0 0 <7Pp98si,u  
Vector_J = 0 0 1 ~>(~2083*;  
Generatrix = MYCURVE2DCONIC001 ISNL='%  
Length = 30 T#-;>@a}  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 ^C'0Y.H S  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20
ujxr/8mjV  
Color = 255 155 255 IyHbl_P ^  
END Tp;W4]'a*:  
A_9^S!  

描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： O,B\|pd2  
光源定义了光强、散射方式、光谱， nFn!6,>E  
怎么没有定义光源的出光角度？