Hi Dominic, a happy new year to you too.
On 2/01/10 10:00 PM, Dominic Stalder wrote: > Image* image = new Image; > image->allocateImage(osgViewer->width(), osgViewer->height(), 1, > GL_RGBA, GL_UNSIGNED_BYTE); > > // creates a new camera that will render into the image and sets the > rendering settings > ref_ptr<Camera> imgCamera = new Camera; >... > imgCamera->addChild(rootLighting.get()); > > root->addChild(imgCamera.get()); > > osgDB::writeImageFile(*image, "/Users/xyz/tmp/test.bmp"); > > It allocates the image with the right size (1400 x 736) and writes it to > disk. But the image is all black. Did you omit some code between 'root->addChild()' and 'writeImageFile'? There should be a call to render the frame (like 'osgViewer->frame()') otherwise the Image will remain black. > Does anybody see an error or what could be the problem? I also tried > with GL_INT instead of GL_UNSIGNED_BYTE but this didn't work too. Is > there a problem with the hirachy: GL_U_B is fine, this will probably also give you better performance. Cheers, /ulrich _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
