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:
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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();
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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.
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