[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< U  
DECLARE CYLINDER Cylinder001 r?Mf3U^G  
BEGIN Cylinder001 55ec23m  
Position = 0 0 -0.3 3 eF c  
Vector_axis = 0 1 0 oV['%Z'  
Radius = 0.2 0+qC_ISns  
Length = 60 H-&27?s^  
Surface = SURFACE_LAMP oB!Y)f6H1  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 0U/[hG"DKN  
&qPezyt  
Color = 255 0 0 un!v1g9O  
END |S).,B  
fnr8{sr.2Z  
DECLARE SOURCE src ZZ
{c  
`WCL-OoZc5  
BEGIN src 9 4H')(  
geometry = Cylinder001 />8A?+g9u  
emission = LAMBERT qHgtd+ I  
power = 200 B%u[gN
Z  
unit = Lumen o~y{9Q  
spectrum = BLACKBODY 5000 2DsP "q79k  
END ?kZ-,@h:  
DECLARE CURVE2D_CONIC MyCurve2DConic001 Q\IViM  
BEGIN MyCurve2DConic001 uUx7>algF  
Position = 0 -0.8 1}c/l<d  
Orientation = 1 0 SD*q+Si,1U  
Radius = 1 h]~FYY  
Conic = 0 #mUQ@X@K  
XMin = -1 b"#S92R+  
XMax = 1 ;Qq_  
END E(6P%(yt8  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 |6?s?tC"u  
BEGIN MyVolumeExtrusion001 S9$,.aq  
Position = 0 30 0 '3^q
W  
Vector_I = 1 0 0 WzR)R
9x]  
Vector_J = 0 0 1 uSI@Cjp  
Generatrix = MYCURVE2DCONIC001 03|nP$g  
Length = 30 %=
2sz>M+  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 EI?8/c  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 "]p
&7  
Color = 255 155 255 kR^">s/H#  
END 0e#PN@  
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描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： G] tT=X[  
光源定义了光强、散射方式、光谱， jM6$R1HX  
怎么没有定义光源的出光角度？