polarCoordinates.ccfx.zip
Ok, last post on this, I promise.
This version resolves the 90 degree rotation. It also adds the ability to do polar to cartesian conversions. This could be used, for example, to unwrap dome masters. The shader is written so that areas outside the bounds of the texture co-ordinate space are set to Alpha=0. This way there are no stretched pixels at the edges (visible).
I was tempted to crop the polar->rect unwrap in half (ala Photoshop) but decided that people could just do that themselves with an edge crop effect downstream.
You switch between the two modes using the "operation" slider. The steps in-between look neat, but are probably pretty useless from a practical standpoint.
Also, since Jan Hanten bothered to tell me about the documentation field, I figured I should use it.
Again, using the UV Remap effect in front of this is kind of handy.
Enjoy!
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