向量vectors设置问题，不清楚如何设置Normal and Up Vectors，你可以在Irradiance/Illuminance Options中选中"Automatically calculate Normal and Up Vectors”。 3{7T 4p.G :QQlI 另外，分析图的颜色和项目也可以在Irradiance/Illuminance Options中设置。
站长说的很对，补充一下： ( <*e Normal Vector E; Y;r" The Normal Vector is a vector in 3D space that is used to orient the projection f2I6!_C!+ plane for the irradiance map. The plane is defined to be perpendicular to the 95W?{>
@ Normal Vector, and the irradiance incident on the selected surface is projected ~g ;
onto this plane. When the map is displayed, the normal vector is pointing toward K{ fsn4rk you. ?
zDa=7 J Up Vector 2{,n_w?Wy The Up Vector is a vector in 3D space that is used to orient the projection plane xJ8%<RR!t for the irradiance map. The plane is defined so that the Up Vector is parallel to the &} 6 KPA; vertical side of the plane. The irradiance incident on the selected surface is z;\d L projected onto this plane. When the map is displayed, the up vector will point
W-~n|PX8+ toward the top of the screen.