[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 .`Sw,XL5  
DECLARE CYLINDER Cylinder001 mzu<C)9d,
 
BEGIN Cylinder001 :v_w!+,/  
Position = 0 0 -0.3 zb>;?et;)  
Vector_axis = 0 1 0 lO[E[c G  
Radius = 0.2 b9y)wBC%`  
Length = 60 J=@x
AVBc  
Surface = SURFACE_LAMP M"B@M5KT  
material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20  ER_ 3'  
S4)A6z$  
Color = 255 0 0 vffH  
END ly[lrD0Kn.  
)&Mq,@  
DECLARE SOURCE src ZEqE$:  
9l#gMFknI  
BEGIN src s047"Q  
geometry = Cylinder001 P0)AUi  
emission = LAMBERT !x8kB Di,  
power = 200 zXjwnep  
unit = Lumen 7u|%^Ao6  
spectrum = BLACKBODY 5000 "ct58Y@  
END -n-Z/5~ X  
DECLARE CURVE2D_CONIC MyCurve2DConic001 ?T <rt  
BEGIN MyCurve2DConic001 FJ}gUs{m  
Position = 0 -0.8 JDKLKHOMZ  
Orientation = 1 0 eKyqU9  
Radius = 1 ^iuo^
2+  
Conic = 0 7C?E z%a@  
XMin = -1 *y?[<2"$
 
XMax = 1 t|_{;!^  
END mVt3W
Za  
DECLARE VOLUME_EXTRUSION MyVolumeExtrusion001 ?;_O 9  
BEGIN MyVolumeExtrusion001 K_Re}\D  
Position = 0 30 0 <n\i>A3`,S  
Vector_I = 1 0 0 6m@0;Ht  
Vector_J = 0 0 1 bLco:-G1E1  
Generatrix = MYCURVE2DCONIC001 R B%:h-t4  
Length = 30 c@9##DPn  
Surface = SIMPLE_SCATTERING_REFLECTION_ONLY 2.000000 10.000000 80.000000 25.000000 oBC]UL;8xJ  
Material = BASIC_MATERIAL PMMA 1.49000 1.70e-003 57.20 >9MS"t  
Color = 255 155 255 9OfU7_m  
END )T/J  
UhdqY]  

描述:图

图片:未标题-1 拷贝.jpg

粗看了一下： QvJZkGX  
光源定义了光强、散射方式、光谱， ,Y-S
(  
怎么没有定义光源的出光角度？