Artifacts on AMD GPUs in Windows

[Tremeschin]

Following issue #83, more specifically my comment #83 (comment), there seems to be some difference in how AMD drivers compiles and/or executes the shader on Windows systems, causing the artifacts seen on the example video #83 (comment).

I'm quite sure it worked previously, alas there have been some major refactors in the code since. This is likely a code branching problem, as AMD/macOS didn't seem to respect early returns inside the main function IIRC (e.g.).

I don't have much intuition on what's happening there nor a gpu to debug. Either support my work or get in touch for remote coding/testing out stuff.