Hi, I think you can specify a normal per polygon using Geometry::setNormalBinding and the parameter BIND_PER_PRIMITIVE.
Alberto El Tuesday 18 September 2007 11:15:07 Cervantes Pintor Pedro escribió: > Hi, > > > I'm constructing a geometric object by hand. The way I'm doing it, is > vertex by vertex and then polygon by polygon. > > Something like: > --------------- > osg::Geometry *myObject = new osg::Geometry; > osg::Vec3Array *vertex = new osg::Vec3Array; > osg::DrawElementsUInt quads = new > osg::DrawElementsUInt(osg::PrimitiveSet::QUADS); osg::DrawElementsUInt tris > = new osg::DrawElementsUInt(osg::PrimitiveSet::TRIANGLES); > > populateVertex (vertex); > populateQUADS (quads); > populateTRIS (tris); > > geometry->setVertexArray(vertex); > geometry->addPrimitiveSet (quads); > geometry->addPrimitiveSet (tris); > > geometry->dirtyDisplayList(); > > ---------------- > So far this works fine but now I want to add the normals for each Quad and > each Triangle. But I still don't understand how to add the normals array > for them. > > I guess is not with geometry->setNormalArray(normals) because this will add > only one array and i have two arrays of polygons, so i still need a way to > specify a normal for each polygon. > > I haven't found an example that works like this, so if anyone can point me > to the solution it will be very much appreciated. > > Thanks in advance to all answers ! > Cheers. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
