https://bugs.freedesktop.org/show_bug.cgi?id=98238
--- Comment #23 from Shmerl shtetldik@gmail.com --- The Witcher 3 in Wine is affected by a very similar issue: https://bugs.winehq.org/show_bug.cgi?id=43786
And actually setting glsl_correct_derivatives_after_discard=true helps as well, though it costs some performance.