From kde-kimageshop Thu Jan 06 09:56:56 2011 From: David REVOY Date: Thu, 06 Jan 2011 09:56:56 +0000 To: kde-kimageshop Subject: Re: (Artists check this out) On the project to make a robust mixing Message-Id: <4D2591E8.4040600 () gmail ! com> X-MARC-Message: https://marc.info/?l=kde-kimageshop&m=129430785625829 MIME-Version: 1 Content-Type: multipart/mixed; boundary="--===============0117657572==" This is a multi-part message in MIME format. --===============0117657572== Content-Type: multipart/alternative; boundary="------------010408030306050803060508" This is a multi-part message in MIME format. --------------010408030306050803060508 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Hi :) Here are my thinking about the brushes : 1) For simulating hair, custom brush mask does really well the job normally ; no need of a special brush engine for this IMO ( exept if a tweaking as I refer in '5' can work ) ; ref :http://forums.cgsociety.org/showthread.php?threadid=259468 2) For dragon scale and textures ; dynamic layer effect such "bevel and emboss" make magic when painting on. I miss it a lot from my Photoshop old usage. ref : http://nebezial.deviantart.com/art/a-dinosaur-scale-tut-62206529 3) Of course , embedded texture in stroke ( working with brush mask ) are ideal. I spoke of it yesterday on IRC with N-pigeon :) ref: http://media.smashingmagazine.com/cdn_smash/wp-content/uploads/images/photoshop-brushes/texture.gif 4) About mixing brush , this is what I wait to make krita equal to the feature I abuse of Gimp-painter , this feature is present in SAITool , Open Canvas, Project Dogwaffle , Painter, Artrage etc... a must have for painting apps ... Weirdly appear in Photoshop only at CS5 ref: http://i125.photobucket.com/albums/p76/hecartha/Software/Photoshop-CS5-003-1.jpg 5) I would really like to get the brush engine of Lukas ( hairy and soft brush noise ) can thicker the noise ( limited to one pixel ) . I already talked about it, but it seamed really complex to replace the 1pixel noise by a bigger size. The 1px width is not really usefull when painting in HD/Printing quality, because it add more noise. ( exept for the fake charcoal of the arabian teapot I drew month ago ; at 100% size of the viewport ) SAITool looks to have the same kind of brush engine where the noise particles can be thicker : it result with really cool pastel/chalky effect for noise ; and for hairy brush really cool brush strokes ( they name it Oil ) . I guess this is faster to compute than bitmap brush mask. ref: http://th09.deviantart.net/fs70/PRE/f/2010/042/9/9/PaintTool_SAI__Brush_Options_by_ArtSmokerToy.jpg ref : http://fc01.deviantart.net/fs50/f/2009/280/9/5/Paint_Tool_SAI_Hair_Brush_by_Neillustrations.png I hope all of this can helps. Happy new year -David ____________________________ http://www.davidrevoy.com On 01/06/2011 10:26 AM, Boudewijn Rempt wrote: > On Thursday 06 January 2011, Thorsten Wilms wrote: >> On Thu, 2011-01-06 at 10:02 +0100, Boudewijn Rempt wrote: >>> Does't the hairy brush do that for you? Or do you mean masses of hair? >> Last time I tried it, it was to regular and rough, but I do mean masses >> of hair. > Masses of hair would indeed be very cool to have. I've no idea yet about the algorithms yet, though I remember reading an article somewhere on how to achieve good looking masses of hair manualy. Should be possible to turn that algorithm into a brush engine :-) > --------------010408030306050803060508 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hi :)
Here are my thinking about the brushes :

1) For simulating hair, custom brush mask does really well the job normally ; no need of a special brush engine for this IMO ( exept if a tweaking as I refer in '5' can work ) ;
ref : http://forums.cgsociety.org/showthread.php?threadid=259468

2) For dragon scale and textures ; dynamic layer effect such "bevel and emboss" make magic when painting on. I miss it a lot from my Photoshop old usage.
ref : http://nebezial.deviantart.com/art/a-dinosaur-scale-tut-62206529

3) Of course , embedded texture in stroke ( working with brush mask ) are ideal. I spoke of it yesterday on IRC with N-pigeon :)
ref: http://media.smashingmagazine.com/cdn_smash/wp-content/uploads/images/photoshop-brushes/texture.gif

4) About mixing brush , this is what I wait to make krita equal to the feature I abuse of Gimp-painter , this feature is present in SAITool , Open Canvas, Project Dogwaffle , Painter, Artrage etc... a must have for painting apps ... Weirdly appear in Photoshop only at CS5
ref: http://i125.photobucket.com/albums/p76/hecartha/Software/Photoshop-CS5-003-1.jpg

5) I would really like to get the brush engine of Lukas ( hairy and soft brush noise ) can thicker the noise ( limited to one pixel ) . I already talked about it, but it seamed really complex to replace the 1pixel noise by a bigger size. The 1px width is not really usefull when painting in HD/Printing quality, because it add more noise. ( exept for the fake charcoal of the arabian teapot I drew month ago ; at 100% size of the viewport ) SAITool looks to have the same kind of brush engine where the noise particles can be thicker : it result with really cool pastel/chalky effect for noise ; and for hairy brush really cool brush strokes ( they name it Oil ) . I guess this is faster to compute than bitmap brush mask.
ref: http://th09.deviantart.net/fs70/PRE/f/2010/042/9/9/PaintTool_SAI__Brush_Options_by_ArtSmokerToy.jpg
ref : http://fc01.deviantart.net/fs50/f/2009/280/9/5/Paint_Tool_SAI_Hair_Brush_by_Neillustrations.png

I hope all of this can helps.
Happy new year

-David
____________________________
http://www.davidrevoy.com

On 01/06/2011 10:26 AM, Boudewijn Rempt wrote:

On Thursday 06 January 2011, Thorsten Wilms wrote:

On Thu, 2011-01-06 at 10:02 +0100, Boudewijn Rempt wrote:

Does't the hairy brush do that for you? Or do you mean masses of hair?

Last time I tried it, it was to regular and rough, but I do mean masses
of hair.

Masses of hair would indeed be very cool to have. I've no idea yet about the algorithms yet, though I remember reading an article somewhere on how to achieve good looking masses of hair manualy. Should be possible to turn that algorithm into a brush engine :-)

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