Hello Adrian If I get you right, you think that the OSG data representation is not optimized for use within a raytracer application. So it will be possible to code a raytracer with OSG but results won't be very efficient and powerful?
regards, Tobias On 10/2/07, Adrian Egli <[EMAIL PROTECTED]> wrote: > > Hi Tobias, > > Greate would be to get a RayTracer attached to the OSG scene. With option > to trace or not. Normally OSG won't trace, but if we like to get high > quality screens, we can just turn on the tracing. But i was thinking about > this still more then once. What we should get or what i like to integrate as > soon as i have some hours to analyse the osg core, we should store the > triangles, trianglesfan, ... (GL geometries) in a accelerated spatial data > structure, best kd-Tree like data organisation. Even the intersection test > could be boosted, also futures animations, collision checks and so on, > boosting of depth sorting for transparency pre triangles should become > possible. Also haptic-rendering could be an option for future application. > This integration would be an essential topic. > > I am not yet sure how we should change the osg internal data structure, at > the moment we store vertices in simple arrays. I feel like to remap them > into an kd-tree. then the whole scenegraph is organised in a spatial data > structure. > > and the once we have a fast internal data representation, we may are > really close to render the scene no longer as face rendering also ray > casted, ray traced parts would be an futur options. what would be really > greate. May we will get small parts raytraced, others not. > > what are others thinking about this topic. > > /Adegli > > 2007/10/2, Tobias Münch <[EMAIL PROTECTED]>: > > > > Hello to all OSG developers. > > > > Does anybody has developed a raytracer based on OSG or OpenGL which is > > free to use on other applications? It is important for me that no changes > > are necessary to the OSG-framework like the raytracer of Amit Ben-David, who > > modified the osg:Vec3f class. I need it for my thesis and unfortunately I > > have not enough time to code one by my own. > > > > best regards, Tobias > > > > p.s.: The source of Ben-Davids raytracer: > > http://www.cs.technion.ac.il/~cs234326/projects/GLSLRayTracer/main.htm > > > > <http://www.cs.technion.ac.il/%7Ecs234326/projects/GLSLRayTracer/main.htm> > > > > _______________________________________________ > > osg-users mailing list > > osg-users@lists.openscenegraph.org > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > > > > > -- > ******************************************** > Adrian Egli > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >
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