I want to make sure I got you right. There's no way to convert Texture to Image, I can only get the Image at the time of Camera draw operation. Thus, it would be easier to attach the Image to Camera. Correct?
2015-05-19 20:27 GMT+07:00 Robert Osfield <[email protected]>: > Hi Michael, > > A Texture attached to an osg::Camera for RTT will not have an > osg::Image assigned to it, it's assigned to a frame buffer object > instead. > > What you need to do is attach a final draw callback on the RTT Camera > that does a osg::Image::readPixels(..) or > osg::Image::readImageFromCurrentTexture(..). You could leave this > callback attached all the time and just have a flag in it that toggles > on/off whether the read to image needs to be done or not. > > Robert. > > On 19 May 2015 at 14:24, michael kapelko <[email protected]> wrote: > > Hi. > > I have osg::Texture that is attached to camera, it contains a rendered > scene > > (deferred rendering). I want to save it to a PNG file. > > I tried to use osg::Texture::getImage(), but the resulting osg::Image > seems > > to be invalid, because osgDB::writeImageFile() crashes with it. > > What's the correct way to convert Texture to Image? > > Thanks. > > > > _______________________________________________ > > osg-users mailing list > > [email protected] > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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