[Bf-funboard] Texture bombing

[Bassam Kurdali]

Using Dynamic paint might be possible but it doesn't have the advantage
of using just one small image repeated multiple time; you'll get
something 'baked' into a giant image texture, or indeed an image
sequence, so it will be less advantageous in terms of saving memory or
disk space (also it is a lot more cumbersome to setup and manage in a
pipeline)
Finally I'm not even sure it will work with DP - is it supported to
paint with images using particles? I've never tried that (cool if it
does).
Cheers
Bassam 

On Mon, 2015-07-27 at 17:01 +0200, Hadrien Brissaud wrote:
> Worth investigating, I am not familiar with dynamic paint, will 
> update on
> this. Thanks.
> 
> On 27 July 2015 at 16:42, <mond at email.cz> wrote:
> 
> > Maybe I missed the point, but isn't it already possible with 
> > Dynamic paint
> > and particle system?
> > From your video it seems to me as the same system.
> > 
> > 
> > 
> > 
> > 
> > 
> > ---------- Původní zpráva ----------
> > Od: Lukas Stockner <lukas.stockner at freenet.de>
> > Komu: Discuss Blender's functionality. <bf-funboard at blender.org>
> > Datum: 25. 7. 2015 17:59:45
> > Předmět: Re: [Bf-funboard] Texture bombing
> > 
> > "This should be possible with OSL: Create a set of points around 
> > your
> > sample
> > point (of course, it must always be the same ones, so an approach 
> > would be
> > stratification based on a hash function, like it's done for Voronoi 
> > cells),
> > calculate the difference of the sample point and each random point, 
> > look up
> > these values in the texture and sum them together. Of course there 
> > are
> > implementation details to be considered, but with a bit of tweaking 
> > it
> > should
> > work.
> > 
> > On Sa., Juli 25, 2015 at 5:12 nachm., Knapp < magick.crow at gmail.com
> > [magick.crow at gmail.com] > wrote:
> > Has anyone done anything with this yet?
> > 
> > On Mon, Jul 13, 2015 at 4:17 PM, Adam Preisler <adam at preisler.me> 
> > wrote:
> > 
> > > Hi Hadrien,
> > > 
> > > Great idea!
> > > 
> > > I myself do this by mixRGBing 2 or more textures using noise 
> > > input (like
> > > CarlG stated in the thread); but this is probably the workaround 
> > > you
> > talk
> > > about?
> > > 
> > > Hopefully this can be done in code as it would allow this tedious 
> > > task
> > to
> > > be done rather automatically.
> > > 
> > > It would be perfect to come up with multiple uses of such feature 
> > > rather
> > > than just this one though; more uses = bigger impact.
> > > 
> > > Keep up the good ideas,
> > > 
> > > adam.preisler.me
> > > 
> > > On 13 July 2015 at 15:56, Hadrien Brissaud <hadriscus at gmail.com> 
> > > wrote:
> > > 
> > > > Hey everyone,
> > > > 
> > > > recently I tried to "texture bomb" an object - basically repeat 
> > > > x
> > number
> > > of
> > > > times a texture in uv space with random coordinates to imitate 
> > > > the
> > look
> > > of
> > > > playdough covered with fingerprints (one fingerprint texture->
> > infinite
> > > > variations in size, orientation and distribution). I got some 
> > > > good
> > help
> > > on
> > > > BA but the solution provided by Secrop was not ideal since the 
> > > > voronoi
> > > > cells used for distribution actually cropped the pattern's 
> > > > borders and
> > > > would not overlap... now I fiddled with their node setup, but I 
> > > > admit
> > it
> > > > was (and still is) over my head.
> > > > So I thought, having a builtin texture bombing node would be 
> > > > rather
> > > handy.
> > > > Thoughts ?
> > > > 
> > > > Thread in question :
> > > > 
> > > > 
> > > 
> > http://blenderartists.org/forum/showthread.php?373685-How-to-repeat
> > -a-
> > pattern-on-a-surface
> > > > 
> > > > Two links given by JA12 for reference :
> > > > http://http.developer.nvidia.com/GPUGems/gpugems_ch20.html
> > > > https://vimeo.com/67931800
> > > > 
> > > > Hadrien
> > > > _______________________________________________
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> > > > Bf-funboard at blender.org
> > > > http://lists.blender.org/mailman/listinfo/bf-funboard
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> > 
> > 
> > 
> > --
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> > 
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