[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 [64K?l0&  
DECLARE CYLINDER Cylinder001 '.#KkvE##  
BEGIN Cylinder001 ? Ls]k  
Position = 0 0 -0.3 X.o
[=E  
Vector_axis = 0 1 0 ;^=eiurv  
Radius = 0.2 {t;Q#Ou.  
Length = 60 %Jq(,u  
Surface = SURFACE_LAMP KJ.ra\F  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 AA^3P?iD  
q@8Rlc&  
Color = 255 0 0 ad&Mk^p  
END ~g;(`g  
b,#cc>76\  
DECLARE SOURCE src H*A)U'`  
s<sqO,!  
BEGIN src <T+Pw7X   
geometry = Cylinder001 0d9rJv}~  
emission = LAMBERT +VAfT\G2  
power = 200 R =mawmQ2  
unit = Lumen 66[yL(*+  
spectrum = BLACKBODY 5000 4_F<jx,G  
END ]W5s!T_  
DECLARE CURVE2D_CONIC MyCurve2DConic001 2j=3i
@  
BEGIN MyCurve2DConic001 Zdr +{-  
Position = 0 -0.8 j0kEi+!TVq  
Orientation = 1 0 %[B &JhT  
Radius = 1 _0oZgt)  
Conic = 0 dGQy=T:  
XMin = -1 4TGg`$e;  
XMax = 1 4Qz  
END -+'{C
=  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 f]
J?-ks  
BEGIN MyVolumeExtrusion001 ?Xlmt$Jp  
Position = 0 30 0 $gJMF(  
Vector_I = 1 0 0 Nr|.]=K)5n  
Vector_J = 0 0 1 shYcfLJ  
Generatrix = MYCURVE2DCONIC001 G"O%u|7  
Length = 30 &.K8cphj  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 {SqY77  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 Lyt6DvAp"  
Color = 255 155 255 2^[fUzL?  
END -x:Wp*,  
P2 !~}{-  

描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： >|.jG_s  
光源定义了光强、散射方式、光谱， iBV*G
W  
怎么没有定义光源的出光角度？