What settings do I change to fix this?

Development Rendering
1

I have some red chairs in a white room. That red colour is reflecting onto the floors/walls/ceilings giving them a pinkish tinge.

What setting/s would I adjust to stop this?

2

I’m not sure if it would work, but there’s a setting in the AtmosphericFog or SkyAtmosphere called “Disable Color Scattering from Ground”. Enable it to disable the color scattering. There’s also a bit of information about that in the docs in one of the lighting pages, don’t remember which.

3

Hi!

You can try to turn off diffuse boost in your mesh’s settings, under ligthmass (default is 1, try 0)…