themanyone asked:
No blue screen or green screen needed! Any solid-colored wall, paper, sheet or blanket will work fine, as long as it contrasts with skin and clothing. It should be a matte finish, not shiny, for best results. You can do alpha masking two videos, transparent overlays, node compositing, or matte keying, whatever you want to call making parts of a video transparent, using all free software (blender 3D and Linux). Now with annotations.
Blender is cross-platform, too, so you can try it out on Windows.
IMPORTANT: Fedora’s blender rpm (installed via yum) DOES NOT WORK for video editing. You will have to download blender from http://blender.org
Notice the grainy camera image? That’s CCD starvation from not enough light. It’s too dark in here and I should also get a scrap of green fabric to pose in front of before doing this again, but you get the idea. I will use this technique at some point, when I get better equipment. I made this video as a reminder.
This tutorial uses the Color Difference Method. If you are using a real green screen, the Chroma Key Node Method may be easier to set up (though color difference still seems to work better for me). See:
http://wiki.blender.org/index.php/Tutorials/Compositing/ChromaKey
Music:
http://mixculture.org
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