Hi, I would like to draw an overlay on top of my rendering result. I read in the archive that there's no "support" for 2d overlays because this is a 3d scene graph. ok. It seems to be possible to draw an overlay with a second viewport, an orthogonal camera etc. It seems a bit complicated to me. So I'm wondering if I can't just render the overlay myself this way:
mgr->redraw(); //simple scene graph redraw glEnable( GL_BLEND ); glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA ); glDrawPixels(...); // slow I know, don't flame me for that glDisable( GL_BLEND ); swapBuffers(); Ok, I'm smart enough to know that this it is a very bad idea to change an OpenGL state without letting know OpenSG. But the good thing is, it actually works (maybe because I'm lucky). I would like to know if these four simple lines can be made OpenSG conformant (in an easy way of course!). Regards, Toni -- Ing. Antonio Bleile Seac02 S.r.l. via Avogadro 4 10121 Torino Italia Tel. +39.011.197.006.52 Fax +39.011.197.006.53 E-mail [EMAIL PROTECTED] Sito www.seac02.it Questa E-mail è rivolta unicamente alle persone o enti ai quali è indirizzata. Essa può contenere informazioni la cui riservatezza è tutelata. Sono vietati la riproduzione e qualsiasi uso di questa e-mail e/o delle informazioni in essa contenute in mancanza di autorizzazione del destinatario. This e-mail is intended only for the person or entity to which is addressed. It may contain information that is privileged, proprietary, confidential, attorney work product or otherwise exempted from disclosure under applicable law. Copying, dissemination or use of this e-mail or the information herein by anyone other than the intended recipient is prohibited. ------------------------------------------------------- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl _______________________________________________ Opensg-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/opensg-users
