Green Screen/Chroma key

Okay. Can I film my subject on a green/blue/whatever color screen and have Blender chroma key it? (Remove the green/blue/whatever)
If not, is there any way to film a subject and have them appear in a 3D world minus the background they were filmed on?

-Stuck in TN

Yes, in the Blender sequence editor. There is a ChromaKey plugin. You can get the plugin from here: http://www-users.cs.umn.edu/~mein/blender/plugins/sequence.html. When you add the strip to your video, hit N while it is selected to play with the properties.

-Laurifer

It’s terrible though. It will work, but it’s not even close to better tools.

Is it? I’ve never had the occasion to use it.

-Laurifer

I tried and found it far too basic to work well. You are able to remove a rangle of colors, but it’s a bit ugly.

Well, do you think it would be better to render the backdrop, then use my editor (Pinnacle Studio 9 Plus, for those who care) to do the ChromaKeying? I can move the box around, but not nearly as much as I’d like. ANy other suggestions would be great!

:-? -Jace

https://blenderartists.org/forum/viewtopic.php?t=41760

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That plugin is much better but still not a s good as pro tools. i have a nice plugin called QKEY for quicktime that ROCKS! But, it’s 30 bucks and worth it. i can use it in any editor I want (I just use Quiktime PRO.) Love the Mac.

Well, do you think it would be better to render the backdrop, then use my editor (Pinnacle Studio 9 Plus, for those who care) to do the ChromaKeying?

Absolutely, I do all my keying in a dedicated NLE except for special cases. One such case involved a guy standing in a virtual scene with a camera dolly shot. I shot the guy full frame against a green screen with a tripod mounted camera, keyed the shot in Premiere, exported a BW map of the key and then mapped the whole thing to a plane in Blender. People think you have a whole production studio equiped with robotic cameras!

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I think you would be able to pull a pretty good key with chromakey-hsv with decent video footage. No, it’s not gonna be as good as a pro package, but it is handy, fast, and you don’t have to leave blender to use it. Plus, some of the other plugins that I have done recently have added alot of other nice compositing features to the seq editor…
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If you would like to send me a few video clips, I could help you set up your fx in the sequencer. I would love to be able to put my new toys to practical work…

Dunno if his images/movies are still up, but a while ago effstops did a pretty cool clip using such techniques:

https://blenderartists.org/forum/viewtopic.php?t=30254

…you might pick something up from reading that thread…?