Rune wrote:
> 
> It should be somehow relative to the scene space 3d-coordinates, not the
> screen 2d-coordinates, or maybe object-specific in some way. Otherwise
> you'd have to recreate the map from scratch if every time you move the
> camera, not to mention animations...

Right, but defining a value on a per object basis is probably pretty
useless since most visible artefacts occur on the surface of one object. 
My first tests use a function which works pretty well and is simple to
implement too. :-)

See p.b.i. for an example.

Christoph

-- 
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