[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 d<a|dwAeh  
DECLARE CYLINDER Cylinder001 `}PYltW  
BEGIN Cylinder001 E]`7_dG+T  
Position = 0 0 -0.3 ?mg@zq8  
Vector_axis = 0 1 0 f4f2xe7\Q  
Radius = 0.2 O_:l;D#i  
Length = 60 lxhb)]c ^>  
Surface = SURFACE_LAMP Z4VFfGCTL  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 jn2=)KBa_  
*1dDs^D#|  
Color = 255 0 0 hN-@_XSw<I  
END 4KH492Nq9  
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a  
DECLARE SOURCE src Ha@;Sz<R  
WkTJ M  
BEGIN src {6'Xz  
geometry = Cylinder001 vQEV,d1  
emission = LAMBERT /}?7Eni  
power = 200 J$3g3%t  
unit = Lumen @[n#-!i  
spectrum = BLACKBODY 5000 UPh#YV 0/,  
END K!-OUm5A  
DECLARE CURVE2D_CONIC MyCurve2DConic001 TLdlPBnr8  
BEGIN MyCurve2DConic001 3"y 6|e/5  
Position = 0 -0.8 bHwEd%f  
Orientation = 1 0 i5 rkP`)j  
Radius = 1 \/NF??k,jk  
Conic = 0 W:d p(,L  
XMin = -1 Q7s@,c!m_  
XMax = 1 ||Zup\QB  
END [oLV,O|s|j  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 MYAt4cHc2  
BEGIN MyVolumeExtrusion001 WTvUz.Et  
Position = 0 30 0 qyH-Z@  
Vector_I = 1 0 0 YFO{i-*q  
Vector_J = 0 0 1 ^|Q]WHNFB  
Generatrix = MYCURVE2DCONIC001 .hl_zc#  
Length = 30 vi,hWz8WB  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 P\jGySj
  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 3A#Tn7  
Color = 255 155 255 d?2
V2`6  
END JWn26,  
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粗看了一下： Kgbm/L0XR*  
光源定义了光强、散射方式、光谱， `Fy-"Uf  
怎么没有定义光源的出光角度？