POV-Ray : Newsgroups : povray.binaries.images : Composite object in photo : Re: Composite object in photo Server Time
26 Sep 2022 02:19:48 EDT (-0400)
  Re: Composite object in photo  
From: BayashiPascal
Date: 24 Aug 2021 06:35:00
Message: <web.6124ca8df317f20fa3e088d5e0f8c582@news.povray.org>
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:


"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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