<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Graphical glitches in Unreal Engine 4" href="https://bugs.freedesktop.org/show_bug.cgi?id=83510#c11">Comment # 11</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Graphical glitches in Unreal Engine 4" href="https://bugs.freedesktop.org/show_bug.cgi?id=83510">bug 83510</a> from <a class="email" href="mailto:hverbeet@gmail.com" title="Henri Verbeet <hverbeet@gmail.com>"> Henri Verbeet</a> <pre>(In reply to Marek Olšák from <a href="show_bug.cgi?id=83510#c10">comment #10</a>) > 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?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>