Mesh not applyfog

first:create mesh.
second:enabled fog
third: mesh not applyfog

if hand modify,applyFog is work!

I’m not sure if I fully understand the problem, but the density is too big to see something other than the fog when enabled:

fog has no effect on the model.

You must define a material and not rely on the default material for the fog to work if you do not define it when you start the program:

That’s related to how our dirtyfication system work (meshes with a null material are not notified).