[Bf-committers] Texture synthesis node

[Brecht Van Lommel]

Hi,

I think texture synthesis is definitely useful for 3D software, 
synthesizing over surfaces or over 3D volumes doesn't fit well in 
image editing software.

An approach like graph cut textures won't work well as a texture node 
though, since a texture node has to be able to get color values from 
just an x/y/z coordinate, there isn't a 2D image in which you can 
precompute the texture. It's possible get some methods to behave just 
like procedural textures however. Also possible is to just bake it 
into an image, taking into account UV's to make it seam free.

There's many papers about texture synthesis, these are some of the 
best I think, perhaps Keith had one of these in mind:

Parallel Controllable Texture Synthesis
Appearance-Space Texture Synthesis
Lazy Solid Texture Synthesis

http://www-sop.inria.fr/reves/Sylvain.Lefebvre/

Brecht.

Tyler Tricker wrote:
> I think image editing features should be left to dedicated image software
> packages like gimp.
> 
> On Wed, Jun 24, 2009 at 7:06 AM, Wahooney <wahooney at wahooney.net> wrote:
> 
>> There is a plugin for GIMP that does this sort of thing very well, in
>> fact it's based on the paper that you've linked to. So for this
>> technique external may be better.
>>
>> However, a better idea would be another technique that maps the texture
>> straight to the mesh, I read about it a few years ago. It's very robust
>> and the results are quite amazing. I'll look for the paper and post it
>> here when I find it.
>>
>> Keith
>>
>> Aurel W. wrote:
>>> Hi,
>>>
>>> I was wondering if texture synthesis from images would be of use in
>>> texture nodes, or if it's better not to integrate this and do it with
>>> external tools. Implementing
>>> http://www.cc.gatech.edu/cpl/projects/graphcuttextures/ may be a good
>>> option. Depending on the type of algorithm and settings used,
>>> calculating such textures can take some time and I am concerned, if
>>> nodes which would take about 10-20 seconds or so to compute, still fit
>>> good into a node editor.
>>>
>>> What do you think, would this even be of use?
>>>
>>> Aurel
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