Am 22.03.21 um 09:56 schrieb Harry van der Wolf:
Op zo 21 mrt. 2021 om 18:17 schreef 'Kay F. Jahnke' via hugin and other
free panoramic software <[email protected]
<mailto:[email protected]>>:
Found the 'black output' bug and fixed it. Please rebuild.
The black image is fixed now
Thanks for reporting back!
but I find it confusing that when I have a
wide panorama, I have to zoom out to get the entire panorama in view
(without the distortions on the side) before I can press "p" to stitch it.
And the panorama is for example 1800x355 (to fill the screen), and that
is then also the resolution it is saved in.
I thought the stitching would take the pto parameters into account.
There are two things going on here. The first is the 'target
projection'. That is the projection used to display the data on-screen,
which is also used to produce snapshots, stitches, and fusions. A
panorama with 1800x355 looks like a stripe panorama, which you may want
to render in spherical or cylindric projection. Use
--target_projection=spherical or --target_projection=cylindric. The
default in lux is to display in rectilinear, as if the user was looking
at the scene with a 'normal' lens, but you can't use that for very
wide-angle images.
With spherical target projection, you still have to zoom out (unless you
pass the desired view hfov on the command line, like --hfov_view=180) to
get the whole panorama into view. If you want your output to have a
specific aspect ratio (like 1800x355), remember that lux is 'wysiwig',
so you have to work with a window of that size (--fullscreen=no
--window_width=1800 --window_height=355), and if the output is too small
for your taste, use --snapshot_magnification=..., for example
--snapshot_magnification=4 to get 7200X1420 output when you finally
press 'p' - or when you batch the job with --next_after_stitch=yes.
The second thing that bugs you is that lux does not look at p-lines in
the PTO, but only the i-lines. I intend to add p-line processing, but
for a viewer it made no sense initially. So what I'll add is an option
to display a PTO as specified in the p-line, with that projection and
fov. For panoramas, this can even become what happens if you press
'Shift+p' because the current setting makes little sense. But to display
the specification in the p-line correctly, I would also need to
implement (live) cropping, which will take some time. Please bear with
me, and until then you'll just have to pass the target projection on the
command line. I'll add p-line processing without cropping soon to test it.
Kay
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