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 > > > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph. > org _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g This e-mail and its contents are subject to the DISCLAIMER at http://www.tno.nl/disclaimer/email.html _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
