SphericalTransform is the way to go.
If your incoming image is a sphercial map, set the input type to latlong
and the output type to box.
If the incoming map is rectilinear, reformat the image to a square
format (not distorting) and use input type cube and output type latlong.
Of course you should know the angle of view that your image was shot
with and prepare it accordingly to fit into one or more cubic (i.e. 90
degrees fov) tiles.
So if you have 4 cubic maps representing all sides of a 360 view (aka
six pack), you can hook them all up to the Spherical Transform and
convert them to a full 360 spherical (aka latlong) map.
On 01/05/13 23:46, paulinventome wrote:
Hi,
Is there some way in Nuke i can create a rectangular to polar
coordinates filter effect (as in photoshop)?
The Spherical distortion node looks like the most likely candidate but
i can't find a combination that really does the same job.
I'm not sure it could be done via UV and IDistort either.
Some pointers would be very very welcome
many thanks
Paul
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