Moved the discussion temporarily to the voreen forum. Will update this list once a conclusion has been reached.
On 1/31/14 6:50 AM, Dr. Roman Grothausmann wrote: > 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 ------------------------------------------------------------------------------ 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
