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trinity-design
trinity-design
Participant
April 21, 2020
Question

How to change the perspective of a "grid" that's been 3D track mapped?

  • April 21, 2020
  • 1 reply
  • 767 views

I've been following a few tutorials trying to get a grid overlayed on the "ground" of my video. I can get the grid on a solid layer that has been created and mapped to a null object that has been created from a 3D Camera Track. my video has very defined curb lines and parking lot lines and while I can get the grid to show on the ground, I can't figure out how to change the perspective of the grid to line up with the video curb and parking space lines... can someone point me in the right direction?

I tried looking for a selection tool that would allow me to grab a corner of the grid and pull it around to mimic vanishing point as in PS, but I can't seem to get it to work in AE.

 

 

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1 reply

Mylenium
Mylenium
Legend
April 21, 2020

You simply rotate the 3D layer. Other than that there is no way to get correct world alignment in Ae. The tracker has no calibration tools and thus any solve is arbitrary in scale and orientation.

 

Mylenium

trinity-design
trinity-designAuthor
Participant
April 21, 2020

I was able to get it done with a quad warp on top of the grid, that allowed me to have individual access to the corners of the grid

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