[Bug 95466] SSAO doesn't work as expected in Supertuxkart

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95466

--- Comment #5 from Kenneth Graunke <kenneth at whitecape.org> ---
That's correct.  I believe it goes haywire outside of the range [-2000pi,
+2000pi].  A number of GPUs use approximations for sin/cos that eventually go
haywire at really large angles - it'd probably be wise to have STK do a range
reduction.

You can just mod(x, 6.283185307179586) rather than converting to degrees and
back.

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