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”。 :sg}e T%) E!:}v 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： sP (+Z^/ Normal Vector
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FU The Normal Vector is a vector in 3D space that is used to orient the projection Z0Z6 a Zeb plane for the irradiance map. The plane is defined to be perpendicular to the @yuiNj .T Normal Vector, and the irradiance incident on the selected surface is projected y>a?<*Y+e onto this plane. When the map is displayed, the normal vector is pointing toward _B^zm-}8|B you. n"EKVw7Y Up Vector [%. v;+L The Up Vector is a vector in 3D space that is used to orient the projection plane T0w_d_aS for the irradiance map. The plane is defined so that the Up Vector is parallel to the >7>I1 vertical side of the plane. The irradiance incident on the selected surface is v=N?(6T projected onto this plane. When the map is displayed, the up vector will point hk~/W}sI toward the top of the screen.