public void InitGeometries()
{
meshTextured = GeometryGenerator.Sphere(1f, 4, 4);
meshPure = GeometryGenerator.Sphere(0.1f, 3, 3);
// meshPlane = GeometryGenerator.Plane(0.2f, 0.2f, 2, 2);
meshPlane = GeometryGenerator.Plane(0.2f, 0.2f, 2, 2);
}