What's the Photoshop effect that slightly softens edges

>>281550
interesting... ik on 3d its called anti-alliasing. maybe just blur and the un-sharpen tool + blending layers?

>>281550
guess you could just add a light blur and grain

>>281550
Select your object, shrink your selection by 1 or 2 px, and blur that shit.

Protip - CMD + Click a layer selects anything that's not transparent in a layer.

>>281550
Smart blur filter?
Or just a regular gaussian blur filter.

>>281555
Anti-aliasing also happens in 2d and that was my first thought as well reading OP's question. Try it and report back OP

Feathering?

>>281550
It's called anti aliasing

I would duplicate the whole thing onto a new flat layer, apply a subtle gaussian blur, mask that shit out and paint back into the layer mask with an airbrush where you want it more softened.