Some mesh color types probably incorrect

[Razlaw]

Hey,

Great tool you build, must have been a lot of work.
Thanks for that :)

I tried to use your example to visualize lucy.obj as a mesh.
When I set Viewer->Mesh Color Type to Height the resulting colors of the mesh do not represent the height + they are not stable/flicker around.
The same goes for SSAO and Intensity as the Mesh Color Type.

Bonus issue: When setting the Mesh color type to SemanticPred or SemanticGT in the example you print a warning over and over again. For me it would be enough to see the warning once or if the same warning would be printed every few seconds.