On 31/01/14 04:02, DRC wrote: > On 1/30/14 5:36 AM, Dr. Roman Grothausmann wrote: >> On 29/01/14 10:30, DRC wrote: >>> The bug is easily reproducible. I am suspicious that it might have >>> something to do with the application's use of FBO's, but I'm not >>> entirely sure what the problem could be, as other apps that render to >>> FBO's are known to work with VGL. The application is clearly calling >>> glXSwapBuffers() (via glutSwapBuffers()) to swap the back buffer to the >>> front buffer, so that means it has somehow transferred the image from >>> the FBO into the back buffer already, and thus VirtualGL should be >>> picking up the pixels. Obviously it isn't, but after 5 hours of poring >>> over it, I have no clue. I would suggest maybe contacting the voreen >>> developers to see if they can at least shed some light on how their >>> application is drawing pixels to the canvas. That could give me a clue >>> as to why it isn't working properly in VGL. >> >> Many thanks for looking into this. I informed the voreen developers that >> info is >> needed.
There is an answer at: http://voreen.uni-muenster.de/forum/viewtopic.php?f=7&t=38&p=186#p184 saying: "the CanvasRenderer uses a fragment shader to copy the content of its input color and depth textures to the viewport. The fragment shader is triggered by rendering a screen-aligned quad (see canvasrenderer.cpp lines 120--147)." Does that info help? Let me know if I can do anything else to support the debugging. Many thanks again Roman -- Dr. Roman Grothausmann Tomographie und Digitale Bildverarbeitung Tomography and Digital Image Analysis Institut für Funktionelle und Angewandte Anatomie, OE 4120 Medizinische Hochschule Hannover Carl-Neuberg-Str. 1 D-30625 Hannover Tel. +49 511 532-9574 ------------------------------------------------------------------------------ WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991&iu=/4140/ostg.clktrk _______________________________________________ VirtualGL-Users mailing list VirtualGL-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtualgl-users
