got some issue with using GlowLayer, for me its going through non glow materials, as they would be transparent.
Here is PG with effect, if you rotate camer so that glow element is behind sphere, glow lines will go through sphere. Here is screen for it as well
Its related to
addIncludedOnlyMesh as soon as line 15
meshes.meshes.forEach(m => gl.addIncludedOnlyMesh(m)); is commented out, effect is working as expected.
Looks like some rendering order issue, will try to investigate further.