Shader - smooth the intersection of two objects

hi! I need help finding a shader that smoothes the intersection of two different objects

what to look for?
or ready asset?

 

A colleague of mine accomplished this by blurring the normals texture via a command buffer. I guess you'd need to use deferred rendering path and add a command buffer to the main camera, which blits with a deferred shader applying a Gaussian blur to the normals texture only, and this should be injected before lighting is applied so that your modified normals take effect.

See here for more information. Blurry refractions shader is a good one to look at, you just need to inject it sooner and blur the normals texture instead of final colour.

 

Another option may be to use the depth texture and the same approach as soft particles (and render the sphere with transparency calculated from (pixel Z - depth texture Z)*scale )

(Wouldn't work well if you've got lots of intersecting objects, only if you've got a small number of objects like that example sphere intersecting an opaque environment)

 

Hi! I'm trying to achieve the same effect. I have a character whose legs are two separated parts (the thigh and the bottom of the leg) which is the solution that fits the best the artstyle I'm aiming for.

But how can I get rid of these seams?

(Here is what I have VS what I'd like)





I already managed to get the normals on a render texture and apply it back on the 3D objects, so all I have to do is alter the texture in shader graph.
But there is no blur node and I'm afraid it would not give proper results.



What would be the best approach ?