mhopf at suse.de
Tue Dec 7 05:34:02 PST 2004
On Dec 06, 04 09:29:44 -0500, Carl Worth wrote:
> On Fri, 3 Dec 2004 19:37:54 +0100, Matthias Hopf wrote:
> > I'm always thinking of wide lines, which are exactly specified in X, but
> > not in OpenGL. Until we have a change in semantics (that is, we make
> > X12) this type of primitve will always have to be renered in software
> > :-(
> Yes, X11 wide lines will always be rendered in software.
> Fortunately, there is no interesting software that uses these lines,
> (and the wide arcs even less so). The reason for that is that the
> pixel-precise specification happens to specify ugly results.
Yep, I know.
Still I keep in the back of my mind that - if we ever bump up the
version number - in X12 the semantics should be changed here.
If it is not for execution speed it is for better quality.
> Going forward, the semantics of the trapezoids in the Render extension
> are much more interesting. That specification allows for both a precise
> and an imprecise mode for rendering the trapezoids, so hardware
> acceleration should be quite appropriate.
Matthias Hopf <mhopf at suse.de> /-- /-- /-- mat at mshopf.de
Maxfeldstr. 5 / 90409 Nuernberg \-\ | | \-\ |-- www.mshopf.de
Phone +49-911-74053-715 --/ \_/ --/ \-- labs
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