protected void Render(GraphicsDevice gfxDev, RenderTarget2D dest, SpriteBatch batch, RenderTarget2D src)
{
if (dest != null) dest .SetActive();
else gfxDev.SetRenderTarget(null);
batch.Begin(SpriteSortMode.Deferred, BlendState.Opaque, null, null, null, Effect);
batch.Draw(src, src.Bounds, Color.White);
batch.End();
}
