Hi Tobias, exactly, OSG is develeped w.r.t high performance surface rendering (OpenGL).
/adegli 2007/10/2, Tobias Münch <[EMAIL PROTECTED]>: > > 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 > > > [email protected] > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > > > > > > > > > > > -- > > ******************************************** > > Adrian Egli > > _______________________________________________ > > 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.org > > -- ******************************************** Adrian Egli
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