protected override void Draw(GameTime gameTime)
{
GraphicsDevice.SetRenderTarget(pixelBox);
GraphicsDevice.Clear(Color.LightCyan);
spriteBatch.Begin(SpriteSortMode.Deferred, null, SamplerState.PointClamp);
world.draw(spriteBatch, gameTime);
spriteBatch.End();
GraphicsDevice.SetRenderTarget(null);
spriteBatch.Begin(SpriteSortMode.Deferred, null, SamplerState.PointClamp);
spriteBatch.Draw(pixelBox, new Rectangle(0, 0, graphics.PreferredBackBufferWidth, graphics.PreferredBackBufferHeight), Color.White);
spriteBatch.End();
base.Draw(gameTime);
}