Hello, Robert Thanks so much - it really helps
Ilia В Чтв, 11/09/2008 в 11:38 +0100, Robert Osfield пишет: > Hi Ilia, > > If one side of the plane should be red, and the other blue then you > could render two polygons for the plane, each with opposite winding > and colour, then use glCullFace(osg::CullFace) to cull the faces to > give the illusion of changing colour. The other technique you could > use of two sided colour in the OpenGL lighting/material model, not all > hardware/drivers supports two side lighting though. > > Robert. > > On Thu, Sep 11, 2008 at 11:22 AM, Korolyov Ilia <[EMAIL PROTECTED]> wrote: > > Hello > > > > I need to draw a plane (more exactly two lines by three points). Problem > > is in plane color. It must depends on camera position relative > > plane side - red or blue. > > > > I did it with CullCallback, because it's only one way to get access to > > camera, which I can find. > > > > What is right way to do it? > > > > Thanks > > Ilia > > > > _______________________________________________ > > osg-users mailing list > > [email protected] > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
