[Bug 83510] Graphical glitches in Unreal Engine 4

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83510

--- Comment #11 from Henri Verbeet <hverbeet at gmail.com> ---
(In reply to Marek Olšák from comment #10)
> However, Tonga and later hardware doesn't have the legacy dx9 opcodes for
> MUL, MAD, RCP, RSQ, and LOG and they must be emulated with a comparison (or
> V_CLASS_F32 that returns whether it's NaN/+-Inf/Denorm/+-0/etc) +
> conditional assignment. It's better to do the conditional assignment after
> every RCP than after every MUL.

Interesting, I wonder how that works out for Direct3D 9 applications. I don't
suppose there's a global switch instead like (at least some) Intel and NVIDIA
hardware has?

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20141204/31106f7f/attachment-0001.html>