https://bugs.freedesktop.org/show_bug.cgi?id=80015
--- Comment #4 from smoki smoki00790@gmail.com --- (In reply to comment #2)
Created attachment 101111 [details] [review] patch
It seems the game relies on specific behavior of inversesqrt, which is undefined when x <= 0 according to GLSL spec. The attached patch uses V_RSQ_CLAMP_F32 instead of V_RSQ_LEGACY_F32 for int_AMDGPU_rsq, this fixed the issue for me.
Thanks Vadim, that fixed it for me too :).