[GEM-dev] clear message to gemwin

[IOhannes m zmoelnig]

Thoralf Schulze wrote:
> Hi Ben, hi list,
> 
> 
>>Anyhow I proposed a "clear" selector that could be
>>changed without
>>destroying and re-creating the gemwindow. (I hope)
>>basically a nice
>>feature for "trails" so that single-buffering is not
>>depended upon for
>>"not clearing"
> 
> so this boils down to still running GEM in
> double-buffered mode, but having to manually clear the
> window if the default behaviour (totally clearing the
> gemwin after each rendering cycle) has been changed,
> right? That would emulate the single buffered mode ...
> and once again, it would be a nice feature to have.

actually this was exactly what i had in mind when i asked, whether 
anybody needs single-buffer mode apart from non-deletion mode.

if we do have some feedback that allows for either normal 
(doublebuffered) rendering AND rendering without clearing the last frame 
(singlebuffered) AND doing something in between (motion-blur), this 
would cover 80-90% of the single-buffer usage (i believe)


mf.a.sdr
IOhannes