In Unity3d I can create 2 cameras, and I can set “depth” parameter for both.
For example:I have 2 cameras - GameCamera with depth=0 and HUDCamera with depth=1, so after GameCamera draw will be finished, HUDCamera will draw their content in the same Viewport.
I would love to know this too, I know there is not a built in, supported way to do this, but I would be happy with a good hack. I am having to find ways around this but it is not having the desired outcome.
UMG might be an alternative to what you are looking for and we are looking at expanding the capabilities of UMG to include the ability to render skeletal meshes. I would recommended watching our latest Twitch stream, - YouTube