[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 lb9?Uc@  
DECLARE CYLINDER Cylinder001 PfU\.[l$  
BEGIN Cylinder001 M`q|GY  
Position = 0 0 -0.3 nu+^D$ait  
Vector_axis = 0 1 0 ]=ApYg7!  
Radius = 0.2 +1yi{!j1  
Length = 60 fQ1j@{Xa  
Surface = SURFACE_LAMP )M"NMUuU"  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 S'$m3,l(k  
OAiW8BAe  
Color = 255 0 0 bJ 6ivz  
END u59l)8=  
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DECLARE SOURCE src oLR/\Y(  
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BEGIN src T#!% Uzz  
geometry = Cylinder001 l=T;hk  
emission = LAMBERT t\QLj&h}E  
power = 200 "3]}V=L<5  
unit = Lumen B_[I/ ?  
spectrum = BLACKBODY 5000 \reVA$M[  
END oDD"h,Z  
DECLARE CURVE2D_CONIC MyCurve2DConic001 ?5ZvvAi  
BEGIN MyCurve2DConic001 3mYW]  
Position = 0 -0.8 ;*zLf 9i  
Orientation = 1 0 w(`g)`  
Radius = 1 M0C)SU5"  
Conic = 0 PHT<]:"`<  
XMin = -1 #mUQ@X@K  
XMax = 1 b"#S92R+  
END ;Qq_  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 W{q P/R  
BEGIN MyVolumeExtrusion001  ? .SiT5  
Position = 0 30 0 ECM#J28D  
Vector_I = 1 0 0 q$yg^:]2  
Vector_J = 0 0 1 >Ho=L)u  
Generatrix = MYCURVE2DCONIC001 F~E)w5?\O  
Length = 30 Z
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Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 2 KH
T!ik  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 bcT_YFLQ  
Color = 255 155 255 3 ;F  
END 2+)h!y]  
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描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： 6A5.n?B{  
光源定义了光强、散射方式、光谱， Z>3~n  
怎么没有定义光源的出光角度？