Re: [GRASS-dev] problem with rendering in wxNviz
KratochAnna at seznam.cz
Wed May 25 08:23:55 EDT 2011
I can confirm this behaviour in tcl/tk nviz only partly. Rendering seems to happen immediately but I still need to click on the Clear button twise, first click does nothing.
> ------------ Původní zpráva ------------
> Od: Hamish <hamish_b at yahoo.com>
> Předmět: Re: [GRASS-dev] problem with rendering in wxNviz
> Datum: 25.5.2011 12:43:58
> Anna Kratochvílová wrote:
> > I have following problem in GRASS wxNviz: after changes in
> > viewing position the surface doesn't render in full
> > resolution and some part of it is not rendered at all, I had
> > to move mouse over the displayed surface. The problem is
> > probably connected with another one, when I click on erase
> > button, surface renders in full resolution, then the next
> > click on erase button erases the display.
> > I tried to change the function gsd_flush so that it calls
> > glFinish instead of glFlush and it helped, but I'm not sure
> > if it doesn't affect anything else and if this is the best
> > solution because I have no experience with openGL.
> > I haven't noticed that anyone has the same problem. I have
> > Ubuntu 10.04, DELL Inspiron and this behaviour occurs in
> > GRASS 6.5 and 7. I don't know if some other information
> > could be relevant.
> just as a debugging test, do you observe the same behaviour
> in tcl/tk NVIZ? What you describe sounds somewhat familiar, the
> rerendering in the tcltk version has always been a bit jumpy. I
> try to sit perfectly still and not touch the mouse at all until
> it is 100% done. :)
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