private RenderContext RenderFrame()
        {
            var context = device.ImmediateContext;

            renderContext.NewFrame();
            context.ClearDepthStencilView(depthView, DepthStencilClearFlags.Depth, 1.0f, 0);
            context.ClearRenderTargetView(renderView, Color.AntiqueWhite);

            return(renderContext);
        }