How can I use hugin to produce a ‘joiner’ that looks more like a “joiner’ than a partial panorama?

[IKT]

Hugin is too good at stitching, it seems. How can I create a joiner in the style of Hockney, using hugin? This would involve not warping or curving the photos; not correcting for perspective; only correcting for roll, but not pitch or yaw; not correcting tonal or colour differences; etc. Ideally, even, allowing a solid border to be added to each component photo (or even a more complex, thick white then black keyline, then drop shadow!). How much of this can I do in current hugin simply by using those complicated tabs that aren’t called “Assistant”?

[Bruno Postle]

If you set control points, but optimise just d, e and roll
parameters, then the photos will be arranged like prints on a
canvas without any distortion.

You can also reset all photometric/exposure parameters before
stitching. Similarly there is no point using enblend to merge the
photos, so you need to stitch just the intermediate images and merge
them as layers in an image editor.

The images could be merged with borders and drop shadows using
ImageMagick.

--
Bruno