Perhaps you could enable CustomDepth only on the objects that you want to have outlines - then use that in your shader rather than SceneDepth? You could also use the CustomStencil setup to apply unique line thicknesses / settings per-object.
Perhaps you could enable CustomDepth only on the objects that you want to have outlines - then use that in your shader rather than SceneDepth? You could also use the CustomStencil setup to apply unique line thicknesses / settings per-object.