Swiftui - Metal Rendering on Apple Watch

Question

Is it possible to render a metal shader on the Apple Watch? I can't anything about doing this but I've seen a few examples of people doing it but no guides. I know MetalKit isn't available but are there any other ways I can render a metal shader on the Apple Watch? (I'm trying to replicate this on the watch). Any help is greatly appreciated.

Answer 1

MetalKit might not be available, but SceneKit is (that's what STS is using in this demo I think). You should be able to implement the effect you linked using a SCNTechnique with a custom metalFragmentShader.