Hi Kim,

Sure, we were not yet sure whether there would be enough interest for
this, but of course we would be happy to submit it. The student's name
is Quintijn, he already submitted some smaller contributions to osgOcean
before. We'll start to work on this submission, it could take us some
time to test it with the newest osgOcean revision, etc.

Kind regards,

Ruben

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Kim
Bale
Sent: maandag 10 mei 2010 9:53
To: OpenSceneGraph Users
Subject: Re: [osg-users] Create a simple river

Hi Ruben,

I just noticed this thread. I don't suppose your student is interested
in contributing his code to the osgOcean project?

Rivers have been asked for a number of times in the past and his
approach would be a nice addition.

Regards,

Kim.


On 10 May 2010 08:13, Smelik, R.M. (Ruben) <[email protected]> wrote:
> Dear Daniele,
>
> I don't think Bruneton's research, although very impressive, is the 
> simplest way to render a river :-)
>
> The simplest way I see is to create the OSG geometry for this river 
> with some code. You would have to segment your curve/spline into small

> quad sections, use a tiling texture and let the u-coords go from 0 to 
> width_of_river / texture_scale in the lateral direction and the 
> v-coords along the curve itself from 0 to total_length_of_river /
texture_scale.
> As the texture is tiling, you can "scroll" it along the river in a 
> fragment shader, where you add time-dependant amount to the v-coord 
> before the texture lookup. You can use osg_SimulationTime for this.
>
> If you're using Bezier curves, you might want to look at this 
> http://graphics.tudelft.nl/~ruben/PosterI3D2010.pdf, a student of mine

> did work on rendering Bezier-curve based river networks, as an 
> extension of osgOcean.
>
> Kind regards,
>
> Ruben Smelik
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of 
> Mhondoz
> Sent: woensdag 5 mei 2010 13:08
> To: [email protected]
> Subject: Re: [osg-users] Create a simple river
>
> Hi,
>
> You may find something on creating rivers here:
> http://www-evasion.imag.fr/Membres/Eric.Bruneton/
>
> /Mhondoz
>
> On Wed, 05 May 2010 12:31:47 +0200, daniele argiolas 
> <[email protected]>
> wrote:
>
>> Hi,
>>
>> I have to make a river. What's the simplest way?
>> I think try to import animated textures with ImageSequence class but 
>> is it possible to map texture on a curve surface?
>>
>> thanks
>> daniele
>>
>> ------------------
>> Read this topic online here:
>> http://forum.openscenegraph.org/viewtopic.php?p=27560#27560
>>
>>
>>
>>
>>
>> _______________________________________________
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>> [email protected]
>>
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.
>> org
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