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Index › Programming Questions & Help › Syntax Questions › using projectors
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using projectors (Read 455 times)
ilikebagels
using projectors
Apr 28th, 2009, 8:45am  
I've noticed that in some videos that people seem to just have objects or something being projected without a background

like this

http://www.vimeo.com/4323975

any ideas how to do this ?
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subpixel
Re: using projectors
Reply #1 - Apr 28th, 2009, 10:12am  
The sketch is running in fullscreen (or "Present") mode. The "background" is black, ie no light. Simple.

Most projectors will still project some ghost-black instead of complete shadow, and this is often noticeable beyond the bounds of where you can show a picture. This could possibly be avoided with a physical mask in front of the projector lens, but I haven't tried this myself. I'm pretty sure that people use non-rectangular masks for custom screens.

-spxl
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