//on shutdown this method is called. it stoppeds the thread and releases the resources and graphics card
private void ShutDown()
{
_renderer.RequestShutdown();
if (!CustomVertex.VertexPositionColor.VertexDecl.Disposed)
{
CustomVertex.VertexPositionColor.VertexDecl.Dispose();
}
if (!CustomVertex.VertexPositionNormalColor.VertexDecl.Disposed)
{
CustomVertex.VertexPositionNormalColor.VertexDecl.Dispose();
}
while (!DeviceManager.LocalDevice.Disposed && !_renderThread.IsAlive)
{
DeviceManager.LocalDevice.EvictManagedResources();
DeviceManager.LocalDevice.Direct3D.Dispose();
DeviceManager.LocalDevice.Dispose();
}
}