[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 D4L&6[W  
DECLARE CYLINDER Cylinder001 Pe_O(  
BEGIN Cylinder001 Xz^nm\  
Position = 0 0 -0.3 :H]d1  
Vector_axis = 0 1 0 (ghI$oH  
Radius = 0.2 mUg :<.^  
Length = 60 ?EFRf~7JP  
Surface = SURFACE_LAMP IJ Jp5[w  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20  V9) /  
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Color = 255 0 0 uPfz'|,  
END /
yI4;:/  
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DECLARE SOURCE src m'"r<]pB*4  
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BEGIN src G&*P*f1S  
geometry = Cylinder001 n4{%M  
emission = LAMBERT q/b+V)V  
power = 200 a3yNd  
unit = Lumen B7f<XBU6
>  
spectrum = BLACKBODY 5000  vD#U+  
END W![K#r5T  
DECLARE CURVE2D_CONIC MyCurve2DConic001 Hhknjx  
BEGIN MyCurve2DConic001 R #wZW&N  
Position = 0 -0.8 \ptO4E  
Orientation = 1 0 M/W"M9u  
Radius = 1 z x-[@G  
Conic = 0 <U3X4)r  
XMin = -1 =Kkqk  
XMax = 1 0"R>:f}  
END B'yjMY![  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 M{jXo%C  
BEGIN MyVolumeExtrusion001 M_E,pg=rWI  
Position = 0 30 0 (l99a&]t  
Vector_I = 1 0 0 B/4M;G~  
Vector_J = 0 0 1 YZf{."Opj[  
Generatrix = MYCURVE2DCONIC001 yI^Yh{  
Length = 30 Al^tM0T^  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 c]M+|R5  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 F=qILwd  
Color = 255 155 255 NVM_.vL  
END $]DuO1H./  
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描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： T~xVHk1  
光源定义了光强、散射方式、光谱，  qraXAQ  
怎么没有定义光源的出光角度？