On 5/7/07, Terry Brown <terry_n_brown@...12...> wrote:

> On Mon, May 07, 2007 at 09:50:15AM -0700, Tony Vigil wrote:
>> Hi!
>>
>> This comes a day late and possibly a dollar short, but maybe it could
>> be useful all the same.
>>
>> I created this blood spat as a personal Inkscape learning exercise.
>>
>> http://soundnvision.homestead.com/files/blood_splat.svg
>>
>> Let me know if you think a tutorial worth doing.

I think a tutorial would be good.  I also wonder if this effect
could be done automatically with a plugin.  The other vector editor
whose name escapes me, begins with X, it can make these sort of 3D
relief things very easily.  Of course it's not constrained to SVG
constructs.

But how about this as a way for Inkscape to make the dark and light
blured paths that give the edge relief automatically.

- break the path up into small pieces, either the way 'Add nodes'
does, or by an algorithm that uses more points in curving areas than
straight areas.   i.e. add nodes and then break this new path up into
pieces, one for each internode

- assign blurred white, nothing, or blurred black to these new
pieces, based on the angle of piece and the desired illumination
angle.  You'd need to keep track of outside and inside, not too
hard.

I think this basic approach would generate the kind of 3d Tony's
acheived here by hand?

An optional inset or outset on the blurred lines would change the
apparent profile of the 3d edge, too.

Cheers -Terry

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