Multiple cameras, layerMasks and post-process issue (only one camera gets rendered)

Hi @Oswald
Sorry for the delayed answer.
Control.linkWithMesh(mesh) (line 27) will cause the control to follow the mesh around.
You can then use, (optionally add it to the CreateLabel options object for different value per mesh);
Control.linkOffsetX (Horizontal offset, line 30)
Control.linkOffsetY (Vertical offset, line 31)
to determine were the label is placed compared to the mesh.(above, under, left, right, etc)

Another big difference is drawcalls,
Using a single CreateFullscreenUI generates just 1 drawcall, nomatter how many labels you add, they’re handled in the same call.
Using CreateForMesh generates 1 drawcall per billboard mesh / label.

https://playground.babylonjs.com/#SX4JD6#3