Hi Eduardo,

sorry but it is really not clear why LGPL prohibits you to

> it's to separate them from osgFX:: Effect class( maybe subclass from
> osg:: Group ), allow them to be mixed with the ambient color, allow
> the Cartoon effect to select the texture unit and remove the outline(
> and possibly try to avoid using fragment programs at all ), and for
> the bump mapping effect to not require a diffuse texture.

the code will be usable under your GPL programs ( just provide a
clause that you allow mix LGPL and GPL ).

So why should OSG derived code be GPL ed?

Regards
Sergey


2009/4/17 Eduardo Alberto Hernández Muñoz <coz.eduardo.hernan...@gmail.com>:
> Hi list,
>
> I'm interested in taking some code from osgFX( particulary cartoon and
> bump mapping ), modifying it, and putting the result under the GPL.
> Since the OpenSceneGraph Public License is based on the LGPL, and the
> LGPL permits switching to the GPL, you would think I just have to
> change any references.
>
> However at http://www.openscenegraph.org/projects/osg/wiki/Legal it
> reads "You may not distribute the source code or libraries under any
> other license, unless authorised to do so by the Copyright holders.",
> so it contradicts itself.
>
> My question( mostly directed at Robert ) is if the OSGPL permits
> switching to the GPL. If it does not, I would like to request
> permission, and in the case you are not the copyright holder, if you
> could point me in the direction of that person.
>
> If you are interested in knowing what kind of changes I want to make,
> it's to separate them from osgFX:: Effect class( maybe subclass from
> osg:: Group ), allow them to be mixed with the ambient color, allow
> the Cartoon effect to select the texture unit and remove the outline(
> and possibly try to avoid using fragment programs at all ), and for
> the bump mapping effect to not require a diffuse texture.
>
> - Coz
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