It's not the fence casting that shadow though Pete (as well you know, I suspect) - it's the curved edge of the top of the mound combined with the angle of the light. The top of the 'triangular' shadow is actually curved.

Don't really know why I bothered posting this as I think you're both just being daft anyway. (Take it as read for Swifty I guess.)

Actually, I do know why I posted it - I'm bored with this crap piece of work I've been doing for the last week (seems more like a year!).

OK, I'll piss off now.

love

Moth