Recently, I have been busy with a macro which allows to draw the edges 
of  a given mesh object. To test the macro on a relatively complex 
object, I decided to try it on Jaime Piqueres citroen gs model. Here is 
what I get, in two different versions (the first one with the edges only 
and a totally flat shading, the second one with cel-shading textures).


I am currently making a simple demo scene, with explanations, that I 
plan to post in p.b.scene-files asap.  The macro in itself is quite 
simple to use, but before using it with a given mesh it needs an 
additionnal file describing the "edge structure" of the mesh, and the 
process to get this file is currently a bit cumbersome (it uses a perl 
script, but due to my poor skill at programming things like parsing, it 
needs a bit of copy-paste first). For another image with the same 
technique (and a little bit of explanation on the principle of the 
method), you may give a look at my entry for the current IRTC round 
(http://irtc.org/stills/2006-04-30/view.html, my entry is tjcello.jpg)


Thibaut

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Attachments:
Download 'ds_edge.compflat.png' (156 KB) Download 'ds_edge.comptoon.png' (167 KB)

Preview of image 'ds_edge.compflat.png'

Preview of image 'ds_edge.comptoon.png'

Amazing. Great. Exciting. And creative!

I like that cartoon effect. Can you tell me how you have done that? I want 
to try that out with my starship scene!

Best greetings, and go on with your renders,

Sven

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Sven Littkowski wrote:
> Amazing. Great. Exciting. And creative!
> 
> I like that cartoon effect. Can you tell me how you have done that? I want 
> to try that out with my starship scene!


Thanks for the comment.

This method works only with a mesh (mesh2) object. For example, the 
silouhette contour of an object is the line separating what is visible 
and what is hidden; so, with a mesh, you get the silouhette by drawing 
the edges which are shared by one visible face and one hidden face.

I'll post soon a complete How-to in p.b.scene-files.


Thibaut

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oops, by silouhette, I meant silhouette of course :-)

> 
> Thanks for the comment.
> 
> This method works only with a mesh (mesh2) object. For example, the 
> silouhette contour of an object is the line separating what is visible 
> and what is hidden; so, with a mesh, you get the silouhette by drawing 
> the edges which are shared by one visible face and one hidden face.
> 
> I'll post soon a complete How-to in p.b.scene-files.
> 
> 
> Thibaut

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Really interesting... specially due to the model used. ;) It reminds me 
one of the drawings I used as reference (in fact is very close!):

http://www.artran.co.uk/images/gs.png

Great work, Thibaut!

--
Jaime

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Thank you! I am looking forward to see the "cartoonizer" code.

Best greetings,

Sven


"Thibaut Jonckheere" <tua### [at] yahoofr> schrieb im Newsbeitrag 
news:44741d5f@news.povray.org...
>> I'll post soon a complete How-to in p.b.scene-files.

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Jaime Vives Piqueres wrote:
> Really interesting... specially due to the model used. ;) It reminds me 
> one of the drawings I used as reference (in fact is very close!):
> 
> http://www.artran.co.uk/images/gs.png
> 
> Great work, Thibaut!
> 
> -- 
> Jaime

Thanks for the comment. I am happy to see that I get something close to 
your orignial reference - this is something to put mainly at the credit 
of your  model of course ;-)

Thibaut

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