[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 t'9E~_!C  
DECLARE CYLINDER Cylinder001 ZQ20IY|,  
BEGIN Cylinder001 #v(+3Hp  
Position = 0 0 -0.3 9sE>K)  
Vector_axis = 0 1 0 z9dVT'  
Radius = 0.2 HHEFX9u  
Length = 60 `fc*/D  
Surface = SURFACE_LAMP wEDU*}~  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 lc5NC;JR  
]"CAP%  
Color = 255 0 0 C|!E'8Rw  
END }#E4t3  
u:,B"!  
DECLARE SOURCE src y/i"o-}}~|  
mup3ua]!  
BEGIN src 8sbS7*#  
geometry = Cylinder001 7d4RtdI  
emission = LAMBERT r2sog{R  
power = 200 3`e1:`Hu  
unit = Lumen ,vN#U&RS  
spectrum = BLACKBODY 5000 O^:Pr8|{J  
END YKM(qh2  
DECLARE CURVE2D_CONIC MyCurve2DConic001 |}mBW@ah  
BEGIN MyCurve2DConic001 7Q[P  
Position = 0 -0.8  g|r  
Orientation = 1 0 9d2$F9]:o  
Radius = 1 9MXauTKI  
Conic = 0 s{iYf :  
XMin = -1 eq4<   
XMax = 1 <M\Z}2d  
END ekAGzu  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 %pg*oX1VK6  
BEGIN MyVolumeExtrusion001 ?xG #4P<C=  
Position = 0 30 0 ^WD[>E~  
Vector_I = 1 0 0 \h0e09& I  
Vector_J = 0 0 1 ^ul`b  
Generatrix = MYCURVE2DCONIC001 "?S#vUS+ 2  
Length = 30 0cS.|\ZTA  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 foJ|Q\Z,T  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 :YV!;dKJ  
Color = 255 155 255 m=}kGzIY4  
END d+^4;Hv4  
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描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： .[_&>@bmrP  
光源定义了光强、散射方式、光谱， SZ1C38bd,.  
怎么没有定义光源的出光角度？