Monday, February 4, 2008
Altering video for projection on curved surfaces
Having recently done an installation using projectors for my video class, it came to my attention now that I will need to alter the equation I have written down in my notes regarding alteration of video for projection. The previous equation took into account the way a curved image would appear to a viewer, but did not take into account the way in which light bends. Unlike the way an image appears on curves, projection size distortion is NOT related to angle specifically, but IS related to proximity directly. Things become more complicated now and I feel I've barely scratched the surface of the project's application. I will need to experiment with a projector in order to understand the way the light will bend.
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1 comment:
hi tina, i'm interested in projecting onto odd surfaces as well, and came across a couple of pieces of software that do the trick.
This is a link to open source software by Graffiti Research Lab (doesn't account for curves tho). Part of an Instructables entry on projection bombing.
And this is a propietary software that warps onto curves, angles, etc.
Hope that helps!
-Blake
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