Hi Alexander,

On Fri, Nov 19, 2010 at 8:26 AM, Alexander Moeller
<[email protected]> wrote:
> Is there a possibility to create a geometrical object bei subtracting an 
> object(or drawable or...) from another?

There is no constructional geometry code like you are asking for in
the OSG.  The OSG's focus is representing the scene and rendering it.

> And how can i create a polygon with a curved surface. For example a 
> cylindrical surface.

You can create a geometry in any way you want, however, unless you use
shaders it will be faceted though.  Create enough triangles and you
geometry will look pretty curved and the facets won't be visible
unless you are very close.  Most 3D applications have no problems with
this and I'd expect your application will be the same.

I don't really know how much you know about OpenGL/graphics cards/3D
rendering so can't guess at what level to pitch explanations at you.
Perhaps if you could explain more what you are trying to achieve then
others will know how to point you in the right direction.

Robert.
_______________________________________________
osg-users mailing list
[email protected]
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

Reply via email to