On Sun, May 24, 2020 at 10:41:51PM +0000, 'ChameleonScales' via hugin and other 
free panoramic software wrote:
> What do you call a vertical tilt all around a 360° panorama like this:
> 
> A program I use calls it pitch but that's obviously incorrect, since a pitch 
> would actually look like this:
> 
> Note that I'm not asking how to perform this transformation in Hugin (yet), I 
> would just like to know if there is a term for it in the "panorama-makers" 
> profession.

Technically speaking, they're both pitch. The difference is in what is
being "pitched".

In your first example, the panorama is stationary and the viewer /
camera is having its pitch altered.

In your second example, the panorama itself (assuming a spherical
projection) is being rotated. Assuming you're using the viewer / camera
as the axis reference for this rotation, it would also be correct to
call this a pitch rotation.

If you can describe what you're actually looking to achieve, we might
have better insight. For example, the first animation shows the effect
of cropping the top and bottom of an equirectangular panorama.

The second animation is a little confusing since the grid seems to stay
locked to the camera, but assuming it's just projecting a camera-space
grid onto an invisible spherical panorama that isn't moving, this can be
accomplished with the pitch control in Move/Drag tab of the Fast Preview
window. Hugin's model considers the virtual camera to be still and the
panosphere to rotate around it, but the result is functionally
identical. If you're looking to just capture that center band, you could
reduce the vertical FOV to suit.

--Sean

-- 
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  • [hugin-ptx] ... 'ChameleonScales' via hugin and other free panoramic software
    • Re: [hu... Bruno Postle
    • Re: [hu... Sean Greenslade
      • Re:... 'ChameleonScales' via hugin and other free panoramic software
        • ... 'ChameleonScales' via hugin and other free panoramic software
          • ... 'ChameleonScales' via hugin and other free panoramic software
        • ... Erik Krause
          • ... 'ChameleonScales' via hugin and other free panoramic software
            • ... Erik Krause
              • ... 'ChameleonScales' via hugin and other free panoramic software

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