On Tue, Mar 19, 2013 at 11:34 AM, Jason Ekstrand <ja...@jlekstrand.net> wrote: > I'm not sure exactly what I think of all this surface transform > passing. I'll get back to that once I get a chance to think about it. > Part of the problem is that you don't want to try and make your > animations subpixel-perfect because that would require a lot of > round-trips to make it right.
And you(Jerome Glisse<https://plus.google.com/u/0/117760209234006027091?prsrc=4> ) replied: > It doesn't add more roundtrip, client will get next matrix like a > frame event, client then draw in screen space and then draw with new > transformation matrix. If client can't keep up it wouldn't either keep > up in the non screen space rendering case. I disagree: currently Weston move windows server side only, that is to say without roundtrip, if you want to be 'subpixel perfect' then moving a window imply to re-render it from the client, which will add a lot of roundtrip in this case. So the current design is 'pixel perfect', but not 'subpixel perfect', and cannot be without big changes.. regards, renoX
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