void ResizeSurface()
{
Math.Rectangle newBounds = surface.Bounds;
SurfaceSize = newBounds.Size;
SurfaceBounds = newBounds;
deviceContext.OutputMerger.ResetTargets();
swapChain.ResizeBuffers(0, (int)newBounds.Width, (int)newBounds.Height, DXGI.Format.R8G8B8A8_UNorm, DXGI.SwapChainFlags.None);
deviceContext.Rasterizer.SetViewport(0, 0, newBounds.Width, newBounds.Height);
viewMatrix = Matrix.Transpose(Matrix.Scaling(2f / newBounds.Width, -2f / newBounds.Height, 1));
viewMatrix *= Matrix.Transpose(Matrix.Translation(-newBounds.Width / 2f, -newBounds.Height / 2f, 0));
UpdateMatrixBuffer();
depthStencilView?.Dispose();
depthStencilBuffer?.Dispose();
surfaceTarget?.Dispose();
surfaceView?.Dispose();
surfaceTexture?.Dispose();
depthStencilBuffer = device.CreateDepthStencilBuffer((int)newBounds.Width, (int)newBounds.Height, sampleDescription, out depthStencilView);
surfaceTexture = device.CreateSurface((int)newBounds.Width, (int)newBounds.Height, sampleDescription, out surfaceTarget);
deviceContext.OutputMerger.SetTargets(depthStencilView, surfaceTarget);
surfaceView = new D3D11.ShaderResourceView(device, surfaceTexture);
}