Tile engine

[Boudewijn Rempt]

On Wednesday 14 October 2009, Dmitry Kazakov wrote:
> > "The image compositing has been speed up by
> > implementing hints to the tile structure.
> > That way the render-engine knows for example
> > if a row is totally transparent and can skip
> > the calculation."
> 
> Well, we do not have it as you described, we have extent() mechanism only
>  to skip transparent pixels.
> 

extent() gives the area covered by allocated tiles, exactbounds() the area 
covered by non-transparent pixels.

-- 
Boudewijn Rempt | http://www.valdyas.org