Hi Michael, You don't say what you mean by flicker or what it relates too. Is just the video texturing flickering? What does the flicker look like?
Robert. On 13 November 2013 18:34, Michael Schanne <michael.scha...@gmail.com>wrote: > 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 > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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