rschroev_nospam_ml at fastmail.fm
Wed Feb 27 23:43:13 CET 2008
> Ok, my final solution is to add the D3DCREATE_FPU_PRESERVE flag. It didn't
> harm performance in a noticeable way at all. I was under the impression
> SSE would be affected by this, too. Additionally I was under the
> impression that float precision would suffice for time.time(). Obviously I
> was blatantly wrong :-)
Float precision might even be enough but DirectX (without the flag)
switches to even lower precision than that; only 22 bits IIRC.
> They should really make the fpu preserve flag the default. It just causes
> very sneaky bugs.
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