[cairo] Avoiding seams (again)

[MenTaLguY]

On Wed, 2006-04-05 at 10:06 -0700, Mike Emmel wrote:
> Whats wrong with a two pass approach that renderes the full scene.
> In phase one you render the alpha channel keeping any needed
> geometry/alpha information for each object thus your combining all the
> alphas in a full sceen.
> In phase two you do the stroke and fills agianst the full alpha mask

You can't really separate the two stages.  But building a scene graph
and computing exact coverage is otherwise a valid solution.

The disadvantages are that it's significantly more complicated and
potentially more resource-intensive than supersampling.

-mental