ok, i don't have seen the different answers...
sorry
Jean-Bapriste
2008/4/10, Jean-Baptiste Authesserre <[EMAIL PROTECTED]>:
>
> Hi,
>
> Have you tried to store your mage in an other format than jpg?
> I have also difficulties to store in jpg format. I personally store
> screenshots of a 3D scene, and it works well when I use png format, or bmp
> format, but not with the jpg format.
>
> Maybe the libjpeg used by osg don't work with RGB image?
>
> Jean-Baptiste.
>
>
>
> 2008/4/10, Vincent Bourdier <[EMAIL PROTECTED]>:
> >
> > Hi All,
> >
> > I have a problem concerning writing image data.
> >
> > My code is simple :
> >
> > const long size = _x*_y*3;
> > >
> > > unsigned char* data = (unsigned char*)calloc(size, sizeof(unsigned
> > > char));
> > >
> > > for(long i=0; i < size ; i+= 3)
> > > {
> > > data[i] = 0; //red
> > > data[i+1] = 0; //green
> > > data[i+2] = 0; //blue
> > > }
> > >
> > > osg::ref_ptr<osg::Image> image = new osg::Image;
> > > image->allocateImage(_x, _y, 1, GL_RGB, GL_UNSIGNED_SHORT);
> > > image->setOrigin(osg::Image::BOTTOM_LEFT);//start counting pixels
> > > on the Bottom left of the picture
> > > image->setImage(_x, _y, 1, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT,
> > > data, osg::Image::NO_DELETE);
> > >
> > > osgDB::writeImageFile(*image, "Z:/autres/Gradient.jpg");
> > >
> >
> >
> > the result must be a black picture... but I've a totally different
> > result (see attached file)
> >
> > Does anyone see a mistake ?
> >
> > Thanks.
> >
> > Regards,
> > Vincent.
> >
> > _______________________________________________
> > osg-users mailing list
> > osg-users@lists.openscenegraph.org
> >
> > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
> >
> >
> >
>
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