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Old 02-27-2013, 06:32 PM   #1
alawrence
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Spherical Mapping Correction

I am trying to find a way to distort a 2d Graphic so that it will be correct when I use spherical mapping on a sphere.

I have found an old PC photoshop plugin but nothing suitable for Mac OSX.

This link explains what I need to achieve.

Polar map corrections on a rectangular texture map so that it can be properly mapped on a sphere without seams or pinching at the poles

http://www.thebest3d.com/dogwaffle/lua/polar/index.html

If anyone could point me in the right direction this would be a really help. The client really wants to this route, but I need to find a solution.

Many thanks in advance.
Attached Images
File Type: jpg paulbourkeexamples.jpg (21.5 KB, 25 views)
File Type: gif clothpolar.gif (33.8 KB, 15 views)
File Type: gif polar1.gif (12.0 KB, 11 views)

Last edited by alawrence : 02-27-2013 at 06:35 PM.
 
Old 02-27-2013, 07:49 PM   #2
Per-Anders
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All versions of Photoshop have this, check Filter->Distort->Polar Coordinates.

Alternatively you can do this in Bodypaint (part of C4D) using texture remapping and projection painting (also you could use a different projection, especially if it's just a decal).
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Old 02-27-2013, 07:49 PM   #3
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