[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 =j&qat  
DECLARE CYLINDER Cylinder001 "u=U@1 ^  
BEGIN Cylinder001 !L|PDGD  
Position = 0 0 -0.3 YZllfw$9  
Vector_axis = 0 1 0 M%S.Z4D (0  
Radius = 0.2 7sglqf>  
Length = 60 y'#i'0eeL  
Surface = SURFACE_LAMP M"l<::z  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20  >M-ZjT>  
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Color = 255 0 0 |w)S &+  
END 0[
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DECLARE SOURCE src G~$[(Fhk  
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BEGIN src RX6s[uQ  
geometry = Cylinder001 g$a 5  
emission = LAMBERT jYJRG<*e  
power = 200 7!r)[2l  
unit = Lumen 4Y!_tZ>  
spectrum = BLACKBODY 5000 <>I4wqqb  
END jDKL}x  
DECLARE CURVE2D_CONIC MyCurve2DConic001 CgxGvM4  
BEGIN MyCurve2DConic001 iLR^V!  
Position = 0 -0.8 /GUbc
  
Orientation = 1 0 ckCb)r_  
Radius = 1 DwBKqhu  
Conic = 0 ]Ac&h aAP  
XMin = -1 @b2JR^  
XMax = 1 ^`< %P
k  
END =,WW#tD  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 !^m,v19Ds<  
BEGIN MyVolumeExtrusion001 l2[{T^  
Position = 0 30 0 tJgo%P1  
Vector_I = 1 0 0 L,PD4H"8  
Vector_J = 0 0 1 Zwm2T3@e
 
Generatrix = MYCURVE2DCONIC001 B!iz=+RNC1  
Length = 30 530Z>q  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 {S2? }  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 L-V+`![{  
Color = 255 155 255 Th%2pwvER  
END E>2~
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描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： g[ dI%  
光源定义了光强、散射方式、光谱， [<H'JsJl  
怎么没有定义光源的出光角度？