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Removing Panaromic Distortion

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Kalyan Tagore
Removing Panaromic Distortion
on Jun 9, 2019 at 11:23:32 am
Last Edited By Kalyan Tagore on Jun 9, 2019 at 11:26:06 am

Hello everyone,
I have a panaromic video (please refer the image link) - which will be projected onto a 360 (four walls) - (plz refer the youtube link)
How can I remove the (spherical) distortion from the 3d renders.
Can anyone please help.

Image
https://www.behance.net/gallery/81337245/Panaroma360-Test?



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Kalyan Tagore
Re: Removing Panaromic Distortion
on Jun 9, 2019 at 11:28:57 am

This is the reference video link






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Kalleheikki Kannisto
Re: Removing Panaromic Distortion
on Jun 9, 2019 at 2:53:28 pm

If the four walls you're projecting onto are close to equal size, you can change the projection from equilateral (as in your original) to cubic projection (6 faces of a cube) in Skybox, omit the top and bottom ("floor" and "ceiling"), then split the four "walls" of the cube into four separate projections.

Kalleheikki Kannisto
Senior Graphic Designer


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Kalyan Tagore
Re: Removing Panaromic Distortion
on Jun 9, 2019 at 6:18:11 pm

Thanks for the reply. The problem is, they are not equidistant... The basic shape of this room is like a cuboid. It's like , 2 walls of 4000px and other 2 walls are 2600px.
The total length of all walls put together would come around 13500px. And the height is 1500px.


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Kalleheikki Kannisto
Re: Removing Panaromic Distortion
on Jun 10, 2019 at 7:36:57 am

My next approach would be to split the panorama into those 4 comps and use optics compensation to remove the distortion. You will need a different amount of the effect on the two differently-sized comps to make the image edges match. I doubt that they will match perfectly, since optics compensation works on both axis, but you have corners in the room anyways.

If you want something that appears more accurate -- i.e. (un)distorts only in one axis direction -- I believe you'll have to use a custom distortion mesh.

Kalleheikki Kannisto
Senior Graphic Designer


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Kalleheikki Kannisto
Re: Removing Panaromic Distortion
on Jun 10, 2019 at 1:39:19 pm

You can use this on the individual walls (on an adjustment layer matching the size of the comp, for instance) and get something quite close to that transform.

13420_equilateraltocubicfaceunwarp.aep.zip

Kalleheikki Kannisto
Senior Graphic Designer


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