I'm trying to use this render as an overlay on an image in Photoshop. I tested blend modes in photoshop, but didn't get the result I was looking for. When I set the alpha to transparency in the scene settings it just rendered the object but not the bloom.

This is the expected result but the black would be transparent:

enter image description here

When I do set the alpha to transparent I get this w/o the bloom:

enter image description here

Right now it isn't possible to render bloom on a transparent background, because the render results use premultiplied alpha.

So, what are some other methods of creating bloom on a transparent background that doesn't involve compositing in blender. I don't care what program I have to use to solve this problem.



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