Basic projection mapping?

Discussion in 'Digital Video' started by stefanwa, Apr 12, 2013.

  1. stefanwa macrumors newbie

    Jan 12, 2009

    Maybe one of you could help me out in setting up a basic video projection with my MacBook and an older LCD 720 16:9 projector...

    I want to make a video projection of moving clouds in the illustrated shape of a cloud. Just on a plain white wall. I don't want the square 16:9 light be seen around my "video object". I have made some quick images to demonstrate what I want to do...

    This is how it should look. The wall is grey in this example.

    It should not look like this:

    or this:

    I hope I made it clear. Maybe I'm just not getting it, but do I need some projection mapping software for this? If I need it, what would be a simple solution (preferable free)?

    Thanks for suggestions!
  2. lucidmedia macrumors 6502a

    Oct 13, 2008
    Wellington, New Zealand
    VPT is the only free projection mapping software I know of for OSX. VVVV is also free, but PC only. I use MadMapper, but that is paid software. You can also write your own masks/deforms in Processing, which is a free programming language.

    This is a really simple mask. You may want to try types of optical masking first if you really want to shut the projector down in the non-image areas... try a cardboard mask or taping off the lens. Even with projection mapping software, you will get light bleed on your non-image areas.
  3. stefanwa thread starter macrumors newbie

    Jan 12, 2009

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