Sounds like snapshot test driven development would work well in that case though: https://hitchdev.com/hitchstory/approach/snapshot-test-driven-development/ ht

Sounds like snapshot test driven development would work well in that case though: https://hitchdev.com/hitchstory/approach/snapshot-test-driven-development/ https://hitchdev.com/hitchstory/approach/snapshot-test-drive... Write a scenario that uses a new water shader - eyeball it - if it's good then "fix" the snapshot and pass it around. Repeat with a few other scenarios to see it performing under all relevant circumstances. It can be a bit tricky if the result of the shader is not deterministic - but there are sensible ways of dealing with that.