[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 118l
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DECLARE CYLINDER Cylinder001 Ell14Iki  
BEGIN Cylinder001 /O<~n%< G  
Position = 0 0 -0.3 ^^&H:q  
Vector_axis = 0 1 0 =/}Rnl+c  
Radius = 0.2 K\wu9z8M  
Length = 60 \s%g'g;  
Surface = SURFACE_LAMP 'Kk/ J+6U  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 Y(t/=3c[  
k,$/l1D  
Color = 255 0 0 hP8w3gl
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END Zr1"'+-  
#q K.AZi  
DECLARE SOURCE src JN:L%If  
z Ohv>a  
BEGIN src -8l(eDm"m  
geometry = Cylinder001 lX%-oRQ/os  
emission = LAMBERT wm^1Fn--  
power = 200 VXiU5n^  
unit = Lumen c]Gs{V]\  
spectrum = BLACKBODY 5000 T*mR9 8i  
END |$6Ten[B#  
DECLARE CURVE2D_CONIC MyCurve2DConic001 Xq )7Im}?  
BEGIN MyCurve2DConic001 _h4]gZ  
Position = 0 -0.8 [<5/s$,i  
Orientation = 1 0 .71ZeLv*  
Radius = 1 2*^=)5Gj-h  
Conic = 0 w_o+;B|I  
XMin = -1 4i.&geXA.  
XMax = 1 .?rs5[th*  
END )5n0P Zi  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 M*bsA/Z  
BEGIN MyVolumeExtrusion001 1) K<x  
Position = 0 30 0 X31%T"  
Vector_I = 1 0 0 +,,dsL  
Vector_J = 0 0 1 :-#7j} R&  
Generatrix = MYCURVE2DCONIC001 jygUf|  
Length = 30 2q]ZI  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 50dN~(;p  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 Q|P M6ta  
Color = 255 155 255 `q\F C[W  
END 7FkiT
  
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描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： *~4<CP+"0  
光源定义了光强、散射方式、光谱， =SuJ*  
怎么没有定义光源的出光角度？