[osg-users] Draw a triangle with front and back faces
ruzhang at gmail.com
Wed Mar 18 08:43:32 PDT 2009
Thanks Robert. Alright, here is the deal. I'm trying to draw a 3D triangular
mesh with osg. For some mesh, the calculated normal points
to the inside. So, I want to draw both the front and back faces, which have
opposite normals. Then you can render the mesh visible.
Is there an example of this? Thanks!
2009/3/18 Robert Osfield <robert.osfield at gmail.com>
> Hi Ruqin,
> The OSG uses exactly the same name conventions and state granularity as
> OpenGL, typically you just need to change glName to osg::Name to find the
> right class to work with.
> In your case are you simply looking for two sided lighting?
> 2009/3/18 Ruqin Zhang <ruzhang at gmail.com>
>> I am trying to draw a triangle with filled front and back faces. In this
>> even the normal of it has a wrong direction, I can still have it rendered
>> I know how to do this in OpenGL, while didn't figure it out in OSG. Has
>> done this before? Please help me out with some sample code. Thanks a lot!
>> osg-users mailing list
>> osg-users at lists.openscenegraph.org
> osg-users mailing list
> osg-users at lists.openscenegraph.org
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