» Calibrate and Re-Project
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Calibrate and Re-Project

tool workshop projection-mapping projection projector calibration tutorial
Credits: joreg, robotanton, emarao

about

Semi-automatically calibrate your projector and throw generated content on to your physical object. These are convenience patches providing a simple workflow for using the projector-calibration that is coming with the ImagePack.

It was presented at Mapping Festival, Gray Area Festival and CGEvent in 2016.

Two Patches are explaining the techniques and show how to use the modules:

  • Step01_CalibrateProjector.v4p
  • Step02_ReProjectionSetup.v4p
Projector Calibration
  1. Place your projector anywhere and point it to a physical object (your "screen") you want to project on to.
  2. Measure several physical points on your "screen" and type their positions into the patch.
  3. Match the points in the projection to the measured points with a few simple clicks.
  4. Hit 'Solve' to get the View/Projection matrices needed for the Renderer.
Re-Projection
  1. Create a 3d Content and render it from the spectator's point of view.
  2. Project. For more about this projection mapping technique, see: Projection Mapping Primer.
Requirements
Known issues

ATI cards
There is a known problem with the ImagePack and Radeon graphic cards.
The solution was proposed by tekcor:

  1. Download "nvcuda.dll": http://www.symbioticcube.com/Downloads/nvcuda.dll
  2. Place it in your ImagePack's nodes/plugins/dependencies/opencv/x86/ folder.

At the moment only 32bit version of the pack is working on my ATI machine.

Foldable model by Emarao based on A4 dimensions

download

vvvv_Calibrate-And-Re-Project_v1_0.zip
22.02.17 [21:06 UTC] by robotanton | 327 downloads
Initial Release

anonymous user login

Shoutbox

~3d ago

skyliner: the vcard page is assembled by personal settings + user page

~3d ago

lasal: thank you guys but this is to edit the user data, i don't find how to edit the vcard

~3d ago

CeeYaa: @lasal - haha nice - I think it's funny - you should keep it ;) to change - HOME-SETTINGS - PERSONAL SETTINGS

~4d ago

skyliner: @lasal: here?

~4d ago

lasal: who knows how to edit the vcard?

~4d ago

joreg: get started with #vl with this first part of a series of "vl for vvvv users" tutorial: https://discourse.vvvv.org/t/vl-for-vvvv-users-key-differences-1-5/15919 #vvvv

~4d ago

joreg: speak japanese? this looks like a great resource for #vvvv tipsntricks: https://qiita.com/advent-calendar/2017/vvvv