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”。 \(4"kY_= 2#srecIz-! 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： _EusY3q Normal Vector Yn ~N;VUA The Normal Vector is a vector in 3D space that is used to orient the projection .uoQ@3 plane for the irradiance map. The plane is defined to be perpendicular to the Q#h*C
ZT Normal Vector, and the irradiance incident on the selected surface is projected un&Z'
.
onto this plane. When the map is displayed, the normal vector is pointing toward ZH1W#dt`[ you. G*`H2-, Up Vector TJ5g? #Wul The Up Vector is a vector in 3D space that is used to orient the projection plane +WH|nV~lQ for the irradiance map. The plane is defined so that the Up Vector is parallel to the "3?N * ,U_ vertical side of the plane. The irradiance incident on the selected surface is Bd8{25{c projected onto this plane. When the map is displayed, the up vector will point 9B&fEmgEc? toward the top of the screen.