Hi, I am having a problem with flickering in my application. I have a scene that includes a live video texture that I project into the scene using a TexGen node. The texture uses an ImageStream object on which I call setData with the pointer to the raw image data. This image is provided by another subsystem that I do not have control over. The image is updated approximately every 20 ms.
When I recently tested my application with a different physical camera and a different version of the image capture subsystem, I would see flickering after the application is running for 5-10 minutes or so. The flicker would stop if I shut off the video feed (so that Image::setData is no longer called). This would make me suspect a bug in the image capture code; however, the entire graphics window flickers, not just the area with the video projection. In fact, I can move the scene so that the video is no longer in the view frustum and the flickering continues. Other than the camera, the hardware is identical. This is a Qt application and the 3D window is just one panel of a larger GUI window. The OSG widget is set up along the lines of the osgViewerQt example. I tried setting OSG_NOTIFY_LEVEL to DEBUG to see if there were any errors but I didn’t see anything suspicious. I am using OSG 3.0.0, Qt 4.8.4, and Windows XP. The video driver is Intel HD Graphics. Does anyone have a suggestion on what could be the cause of this flickering and how to fix it? ... Thank you! Cheers, Michael ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=57201#57201 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
