You can see a round window in this vid:
http://www.zee-3.com/video/chunks.wmv
It's fast enough for realtime use - my game has up to four of these on screen at once. A nice feature is that the window can be rotated\scaled\alpha'd etc.
http://www.zee-3.com/video/chunks.wmv
It's fast enough for realtime use - my game has up to four of these on screen at once. A nice feature is that the window can be rotated\scaled\alpha'd etc.