Hi Fabian,
The osgvolume example has code that modifies uniforms via an event
handler, so go have a look at this code. The key you are probably
missing is passing of a pointer to the uniform to the event handler so
that the event handler can set the value directly.
Robert.
On Tue, Oct 7, 2008 at 5:26 AM, Fabian Bützow <[EMAIL PROTECTED]> wrote:
> Hi everyone,
>
> I want to change a scalefactor in a vertex program dynamically.
> The scalefactor is changed by the user via an InputHandler.
>
> float scaleFactor= 1.0;
> ShaderInputHandler* input= new ShaderInputHandler(scaleFactor);
> //add handler to view ..
> geometryStateSet->addUniform(new Uniform("scaleFactor", scaleFactor));
>
> I tried to add an update callback, but that didnt work..?!
> Could you help me?
> Cheers, Fabian.
> _______________________________________________
> 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
