⚠️ Some if not all of these have been fixed in the latest beta, will update this repo when I have a moment.

Issues found so far (see here):

• Passing in an additional texture fails silently (distortion effect) or breaks the ability to sample the layer (layer effect).

  • The documentation on Shader.Argument.image states:

    Currently only one image parameter is supported per Shader instance.

    However, it's unclear to me if that would include the SwiftUI::Layer in the layer effect case?

• After a certain number (or size?) of arguments, shaders fail silently.

API limitations:

• I found no way to turn a dynamically compiled MTLLibrary into a ShaderLibrary. There is ShaderLibrary(data:) but it's unclear to me where this data would come from, other than disk.

• Run-time errors or at least console logs for argument mismatch would be highly appreciated.

• I found no way to sample what's behind the view to build e.g. custom a Material-like effect. There's ways to work around the limitation by installing the effect on the nearst common ancestor but that seems inefficient?