Feature Request Disabling shader variants for quick build tests

Shaders compilation takes up about half of our total build time (2-3hrs). Although caching does help, sometimes we need to add or change scenes that trigger a shader recompilation (Is it full recompilation or just partial?).

It would be really great if we could toggle an option that creates a build that just uses one very basic shader for everything.

I was imagining something that just renders the normals as albedo and no lighting. This would let us confirm that our logic/content is correct or trace bugs before committing to the full shader compiled version.

This is particularly important when you are coming down to the wire on a deadline. There is nothing worse than waiting an hour and a half of shader compilation when you only have 6 hrs remaining >.<