Why are my white ceiling and parts yellow?

All my light settings are white. But some parts turn out to be yellow. Sombody know why? And what to do about it? Thank you

it might be some color inside the texture, it might be the light color reflecting from the chairs or big cylinder thingy in the background. It could be the lightmap resolution or how the lightmaps are set up.

There are many many factors that could cause that.
Any additional information could be helpfull!

Groetjes!

Ok, here it is, komt ie dan :wink:

Derectional light

Skylight

Pointlights

Ceiling mesh details

Ceiling material

Ceiling material details

An other weird thing, my concrete with exactly same material in this same scene is also not the same. Settings are exactly same, only diffrence is it is an other mesh. So maybe we have to search the problem in 3DstudioMAX? where i made them.

I soluted the problem myselfes. My directional light was set to Stationary. I changed it to static and problem is solved. Question stays why is this? And how to solve this in futer is needed to leave it at stationary.