Thanks Simon and Jose. I'll get the E source a.s.a.p. and try it out. Regards Rene
Simon TRENY skrev: > Hi Rene, > > The main problem we have here is that what you'd like to do is > definitely engine-specific whereas Evas tends to abstract totally the > engine layer. Anyway, with some Evas engines it should be quite easy to > use OpenGL to render 3D stuff. Here is how to do it with the > GL-X11 engine of Evas (which is obviously the most appropriate engine > to do that since it already provides the GL context). > > So, with the GL-X11 engine of Evas, all you have to do basically is to > call all your OpenGL functions before glXSwapBuffers() gets called. > glXSwapBuffers() is called by the output_flush() method of the GL-X11 > engine, which is called by evas_render_updates_internal(). So the > problem is that we need to be somehow notified before > evas_render_updates_internal() calls the output_flush() method, and, > for now, there is no way to do that. I have written a small patch for > Evas to add a callback called each time before output_flush() is > called. The function to set this callback is evas_flush_callback_set(). > The Evas patch is joined with this email (this patch should not be > applied to the CVS repository of Evas, it's a quick'n'dirty hack!!). > > Now, all you have to do is to make the calls to the OpenGL functions in > the "flush-callback". I have attached a a small code that shows how to > do it. It's totally dirty and hacky but it works quite well :) There is > just a small problem with the Zbuffer of with the backbface culling I > guess (the cube looks weird...), but it shouldn't be hard to fix. > To compile this code, you have to apply the patch to Evas, and to > compile it with: > gcc -o evas_gl_proto evas_gl_proto.c `ecore-config --cflags --libs` -lGL > -lGLU -Wall > > <snip> ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
