Hey uli, What do you mean by "getting a nice image from that is a b??ch"? Is the image quality reduced?
Not sure what de-bayer algorithm I'm going to use. I have the source for one that we have used before but I'm not sure how it will work on a shader. Is there an example of an osg::PixelBufferObject being used to stream to an Image?? How is one attached to the image? Also, about the non-power of 2 textures.... can I make the texture scaled to the nearest power of two and just modify the texture coordinates on the quad? Will doing this avoid the CPU scalling of the texture? -Steve -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ulrich Hertlein Sent: Wednesday, June 25, 2008 10:19 PM To: OpenSceneGraph Users Subject: Re: [osg-users] Advice on Rendering Streaming video [EMAIL PROTECTED] wrote: > I've already set up an orthographic2D view that will look at a quad > which will display the texture. The shader will then convert the texture > into RGB and do the whitebalance. I am also able to swap the texture > back and forth and maintain decent frame rates but the textures I'm > using to test are only 64x64 pixels (tank.rgba and water.rgba) and I'm > wondering if it would be too slow (<30fps) to use the same method for > 1000x1000 pixel images. The texture bandwidth isn't likely to be a problem, keep in mind that bayer images are only 1/3 of an RGB image of the same size. Things to look out for is to use non-power-of-two textures or texture rectangles to avoid CPU scaling of the image. You'll also want to attach a osg::PixelBufferObject to the osg::Image. Unfortunately getting a nice image from that is a b??ch and the shaders can get complex pretty fast, the number of texture lookups is probably the most expensive op. What de-bayer algorithms are you looking at? Cheers, /uli _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
