[Bug 101739] An issue with alpha-to-coverage handling is causing Arma 3 64-bit Linux port to render trees incorrectly

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101739

--- Comment #11 from Marek Olšák <maraeo at gmail.com> ---
If "glsl_correct_derivatives_after_discard=true" fixes it, it's not an
alpha-to-coverage issue. It's a problem with the use of discard in GLSL.

There is no difference in alpha-to-coverage behavior between DX and GL. Make
sure you have this fix:
https://cgit.freedesktop.org/mesa/mesa/commit/?id=f222cfww3c6d6fc5d9dee3742d20aa77cfff9c39f8

If there is a difference between DX and GL, the GL specification can be
corrected or a new GL extension can be added for the DX behavior.

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