private void OnUnload(object sender, EventArgs e)
{
base.OnUnload();
// Always make sure to properly dispose gl resources to prevent memory leaks.
// Most of the examples do not explicitly dispose resources, because
// the base class (ExampleWindow) calls GLResource.DisposeAll(this).
// This will automatically dispose all objects referenced by class fields
// which derive from GLResource. Everything else still has to be disposed manually.
_program.Dispose();
mesh.Dispose();
}
