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Blur silhouette of mesh with material or post processing??

I am attempting to create a material or pp material that will effectively blur the silhouette of a mesh. I need to be able to detect edges and then blur inward. I would use this mask as an alpha to blend between postprocessing0 and the mesh render itself.

I know that I can create an outline with a pp material and flag meshes I want to inherit the outline as "render custom depth." But how would I then blur inwards?

Here is an example: alt text

So I need a way to render this mask somehow.. either within a material.. or a pp material. alt text I would then use this mask to create a translucency mask that would effectively blur the silhouette.

Product Version: UE 4.11
example.jpg (146.7 kB)
mask .jpg (101.0 kB)
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asked May 06 '16 at 11:36 PM in Rendering

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Here is the post process material:

alt text

A bit involved but not as expensive as I expected.

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answered May 07 '16 at 08:27 AM

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avatar image ZoltanE May 07 '16 at 08:28 AM

This is how it looks like:

alt text

avatar image aaronkaminer May 07 '16 at 09:38 AM

This is fantastic. This is very much so what I was thinking. I will implement this asap. Thank you very much for helping me expedite this! I will let you know how it goes!

avatar image ZoltanE May 08 '16 at 07:15 AM

If you found an answer helpful then please mark it as accepted. :)

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