[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 vHb^@z=  
DECLARE CYLINDER Cylinder001 FDuIm,NI  
BEGIN Cylinder001 {N@Pk[!  
Position = 0 0 -0.3 Raf-I+  
Vector_axis = 0 1 0 DDZnNSo<JQ  
Radius = 0.2 l6.&<0pLT  
Length = 60 l$m}aQ%h  
Surface = SURFACE_LAMP S]Aaf-X_  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 40 zO4  
0KjCM4t  
Color = 255 0 0 rv2;)3/*  
END imyfki $B  
\og2\Oh&gH  
DECLARE SOURCE src 8qoA5fW>  
877Kv);  
BEGIN src *TPWLR ^  
geometry = Cylinder001 D0h6j0r5  
emission = LAMBERT 8[
:G/8VI  
power = 200 hd)WdGJp
  
unit = Lumen $}=r45e0K  
spectrum = BLACKBODY 5000 'a>D+A:  
END =)J<R;  
DECLARE CURVE2D_CONIC MyCurve2DConic001 6#HnA"I2n  
BEGIN MyCurve2DConic001 Yh{5O3(;  
Position = 0 -0.8 M*aYcIU((  
Orientation = 1 0 w7f)v\p  
Radius = 1 kkXe=f%  
Conic = 0 m",G;VN  
XMin = -1 Ho $+[K  
XMax = 1 nD}<zj$D2  
END t;_1/mt  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 *E-MJCv  
BEGIN MyVolumeExtrusion001 u/FC\xJc  
Position = 0 30 0 w{GEWD{&  
Vector_I = 1 0 0 N]&hw&R{Q  
Vector_J = 0 0 1 co'qVsOiH  
Generatrix = MYCURVE2DCONIC001 A>\3FeU>UC  
Length = 30 <eZrb6a'  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 V6'k\5|_  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 AnpO?+\HF  
Color = 255 155 255 zbfe=J4c  
END ^MVOaV65  
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粗看了一下： [5Zi\'~UH)  
光源定义了光强、散射方式、光谱， etk|%%J  
怎么没有定义光源的出光角度？