Well done.
I think the foremost left leg should be behind the branch of the tree, but I
understand that would be difficult.
BaldEagle recently gave a link to a paper describing exactly how to do what
you're trying to do. Have a look at "Rendering Synthetic Objects into Legacy
Photographs" in this message:
http://news.povray.org/povray.advanced-users/message/%3Cweb.60d86ce893de9b141f9dae3025979125%40news.povray.org%3E/#%3Cw
eb.60d86ce893de9b141f9dae3025979125%40news.povray.org%3E

Pascal


"s.day" <s.d### [at] uelacuk> wrote:
> Just playing around trying to add a Pov CSG object (the tripod) into a photo.
>
> Pretty pleased with the effect but I am wondering if there is an official method
> of doing something like this to get better results?
>
> I googled it and found some interesting information by Robert McGregor that I
> just I didn't understand ;-)
>
> Then I found someone who (can't recall who) mentioned using no_object to create
> a scene with just the shadows which I could then merge (using code from Robert's
> method) to render combine the shadow and image data.
>
> I really have no idea what I am doing here but it seemed to work better than
> expected. I could probably improve it by adding steps to my shadow scene so the
> shadow raises but I would then have to lift up one of the Tripod legs as they
> are currently all at the same level and as the Tripod is a CSG model that would
> be a lot more effort than I have time for.

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