public void HighlightBounds(SharpDX.BoundingBox bounds)
{
var r3d = new Media3D.Rect3D(bounds.Minimum.ToPoint3D(), bounds.Size.ToSize3D());
var b = new Helix.MeshBuilder();
b.AddBoundingBox(r3d, 0.1);
b.AddSphere(bounds.Center, 0.1);
var geom = b.ToMeshGeometry3D();
box.Geometry = geom;
if (!Viewport.Items.Contains(box))
{
Viewport.Items.Add(box);
}
}
