Rendering multiple overlapping scenes in the same location
I am trying to create an effect which requires rendering multiple scenes in the same "place", so that the geometry sits in the same place in the world, but dependent on some property in the shader or the material settings one or other of the scenes will be rendered. There are a couple of approaches to achieve this:
It would be useful to have the geometry actually physically sit in the same location because there are times I will want to be able to collide with things in either scene and this would be a pain if the scenes are offset from each other (I suppose I would have to have some sort of proxy of the collidable in the other scene and then propagate any collisions back to the original Actor).
Another approach would be as follows:
However I don't know if this is possible in UE4 as it stands. Other posts I've found that touch on similar issues seem to imply that the new deferred rendering model makes this difficult. I'd like to avoid having to modify the engine if possible. If it were possible, though, this feels like it would be the ideal solution.
My question then is as follows: Is this two-pass approach possible? If not, is there another approach I haven't considered?
asked Aug 17 '15 at 06:18 AM in Rendering
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