Staking projectors and correcting geometry
  • steppenwolf
    junior Member
    Posts: 7
    Joined: Mon Feb 20, 2023 1:46 pm

    Staking projectors and correcting geometry

    by steppenwolf » Fri Feb 24, 2023 2:19 pm

    I am planning to sum the lumen of several projectors by stacking them. If I calibrate them over a flat surface, their intersection can be calibrated seamlessly. However, is there a way of overlapping signals in a 3D environment so MadMapper understands the different positions and sends a slightly different output to each projector?

    So far, the only option in my mind is to create an exact 3D replica of the environment as a 3D surface for each projector independently. So 3 projectors would equal 3 3D surfaces, one for each, using the same media. Am I over complicating it?
  • mad-matt
    garageCube team
    Posts: 1475
    Joined: Mon Sep 09, 2013 5:50 pm

    Re: Staking projectors and correcting geometry

    by mad-matt » Wed Mar 01, 2023 10:14 pm

    The 3D object thing should work, that's tricky but interesting. If you manage it I'm curious to see pictures :-)
    Except this solution, you'd have to do many quads manually, I see no other option. Not sure which one would be the fastest, it depends on your experience creating 3D objects and the complexity of the environment...
  • MatteLe
    member
    Posts: 13
    Joined: Thu Jun 29, 2017 11:19 pm

    Re: Staking projectors and correcting geometry

    by MatteLe » Thu Mar 09, 2023 11:04 am

    This reminds me on my experiments with the 3d calibration. It would be nice to have direct access to the transformation matrix after calibration. Would also be nice to have parameters for the lensshift.
  • mad-matt
    garageCube team
    Posts: 1475
    Joined: Mon Sep 09, 2013 5:50 pm

    Re: Staking projectors and correcting geometry

    by mad-matt » Thu Mar 09, 2023 10:12 pm

    It would be nice to have direct access to the transformation matrix after calibration.
    What would you do with it ?
    Would also be nice to have parameters for the lensshift.
    Can you be more precise ?
  • franz
    madMapper master
    Posts: 1033
    Joined: Fri Feb 18, 2005 7:05 pm
    Location: Paris, France
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    Re: Staking projectors and correcting geometry

    by franz » Wed Mar 22, 2023 5:36 pm

    As far as I remember there should be a command line option to log the calibrated camera matrix.
    You'd get 16 floats, end of the story.
    Pretty raw.

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