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De : Niko Kiirala <niko@...1267...>
À : inkscape-devel@...840...net
Envoyé le : Mardi, 10 Mars 2009, 14h02mn 54s
Objet : Re: [Inkscape-devel] Re : Kernel Unit Length in Lighting Effects

Tue, 10 Mar 2009 12:37:01 +0000 (GMT)
Ivan Louette <ivan_louette@...48...> kirjoitti:

> If  I understand well the 256 height levels available cause the same
> kind of problem encountered with 3D displacement maps and which was
> solved by the use of 16 and 32 bits grey levels maps.
>
> Are those 256 height levels maps a limitation of SVG ?

I believe what you're describing is exactly the same problem. Input
image for lighting effects is essentially a height map, which in turn
is a special case of 3D displacement map.

256 levels is not a limitation of SVG itself, but a limitation of
Inkscape rendering engine. Using more than 8 bits per colour component
would help with this problem, but likely would require quite a bit of
work.

--
Niko Kiirala
niko@...1761....1267...

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