Hi Paulo, Do you know which plugin is begin used on your OSX system? Under OSX we normally default to useing Quicktime or imageio depending upon version of the OSG, settings etc. On other platforms we use format specific plugins. If there is problem it could be in any one of these places.
As I'm not a OSX users myself I'll have to rely upon yourself and other OSX users to look into the problem. Could you provide an example file so that others can test it? Thanks, Robert. On 2 August 2013 10:12, Paulo Silva <paulo.jn...@gmail.com> wrote: > Hi there, > > I just happen to have an RGBA texture with some alpha values equal to 0. > Unfortunately, at least on mac osx, the image that I get from > osgDB::readImageFile has the RGB values set to 0 for pixels that have alpha > = 0. > > I did load the image on gimp and confirmed that the RGB values are > maintained in the file, so the problem seems to be in the way the osg plugin > handles the file. > > As far as I can understand, the image loading is done by the quicktime > plugin, so I would argue that this is the evil doing of apple's code. > > Does anyone know more about this issue? Where it originates? How to fix it? > I already have a fix (changing alpha = 0 to 1 and remapping after I load the > image). > But I would like to avoid that if possible. > > Thanks, > Paulo > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
