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”。 ZsGJ[ Q>uJ: [x+ 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： i$CF*%+t Normal Vector HP:[aR!2P The Normal Vector is a vector in 3D space that is used to orient the projection i_av_ I- plane for the irradiance map. The plane is defined to be perpendicular to the \9]- (j6[H Normal Vector, and the irradiance incident on the selected surface is projected ~Jl q.S ' onto this plane. When the map is displayed, the normal vector is pointing toward ^[Y/ +Q.J you. -cP1,>Ahv Up Vector Px gul7 The Up Vector is a vector in 3D space that is used to orient the projection plane 3Qu-X\ for the irradiance map. The plane is defined so that the Up Vector is parallel to the 0R}hAK+| 4 vertical side of the plane. The irradiance incident on the selected surface is q pq (< projected onto this plane. When the map is displayed, the up vector will point /`j2% 8^N toward the top of the screen.