Hello,
I'm working right now on something that is completely out of my comfort zone - a stylised character (I usually work on realistic props and environments). To make matters worst it's a bird with feathers ...
I thought initially I'll just use a bit of projection in Substance Painter with bird photos for basic color and use a few poly strips with alpha to give the final look a little bit of puff. But the results were horrible.
First of all the optics and reflections of feathers is a bit complicated and since my final platform is Unity I was hoping to use a simple roughness/metal setup, but I don't think it's doable without a custom shader. Second with VR in mind I can't throw too many objects with transparency, as this would kill any graphics card at 90fps on several skinned meshes.

Any suggestion how to approach this? There's hardly any info about doing feathered characters in games.