There is a bug in fog of 3dmax

[yc8892856]

When only fog is used in 3dmax, there will be a one-size-fits-all situation in the picture.See the screenshot for the effect.

[maru]

Hi, can you please explain what exactly you mean here?
Are you using the 3ds Max fog effect? (in the 3ds Max Environment and Effects window?)
If so, please do not use it, as it may be unsupported, and it is definitely better to use effects which are native to Corona. If you wish to get the effect of fog (aerial perspective) you can use:
- global fog - see this tutorial from this time stamp - https://youtu.be/no0CVtlGF8E?t=1694
- use the volume effect in Corona Sky - https://docs.chaos.com/display/CRMAX/Corona+Sky+Map#CoronaSkyMap-VolumeEffect

Please also update to Corona 9 Hotfix 1 - https://corona-renderer.com/download