Hi Group

(my first posting)

Platform: macOS Mojave Version 10.14.6 (Build 18G87)
Version: 2019.0.0.a369cbe55179 built by Niklas Mischkulnig
nona: using graphics card: ATI Technologies Inc. AMD Radeon RX 580 OpenGL Engine

I have a steadily growing collection of 2 rows by 3 columns architecture pano 
shots which I'm finally able to start assembling. I run into a plethora of 
problems.
The shots I've been testing with are taken by a MFT camera with a 16mm lens 
(32mm eq), portrait orientation. Nodal Ninja 4 pano head.
I am testing with the same 6 full size (5182x3887) images every time.

My «workflow» (= attempt at getting this done)
Import 6 images
Reassign #1 as AC Anchor instead of #0
Reassign Lens 0 to all images. Hugin insists that I'm using two different 
lenses, 0 and 1.
Create one Vertical line (I am beginning to think this may be superfluous)
Create CPs using cpfind + celeste (I still find CPs that seem totally random, 
in the middle of nowhere)
Menu>Edit>Fine-tune all Points
View>Control Points (PF3)
Delete all CPs < 0.80
Open Fast Panorama Window
Click 2. Align...
Choose Projection, usually Panini General
Straighten pano, make vertical lines vertical, using Move/Drag
Go back to main window
Select Stitcher
Calculate field of view
Calculate optimal size
Fit crop to images
Stitch!
Run PTBatcherGUI
This may work or it may not, and I'm unable to solve the puzzles. There are too 
many variables.

Referring to the numbered list above, I am seeing issues.

3. My source images are HDR, produced by a different app. The sizes may vary by 
a pixel or two. Each time the size is different, Hugin assigns a new lens. 
Hugin computes HFOV, which varies between 42° and 44°. Really? That's more than 
4%. 1/3887 = 0.025%

5. I'm unable to find an explanation anywhere of what Distance means. What is 
Optimal? I settle with the fine-tuned results, which are not distances, but 
correlations. But I have no idea what it is the correlation between.

6. What does fine-tune do? Run through all the CPs and assign them to a common, 
consistent mapping universe?

10. After Align, I may or may not get a well assembled picture. Sometimes it's 
beautifully seamless, sometimes it's gross, with partial images not matching.

18. Stitch! does not pass any arguments to PTBatcherGUI...

19. ... so I open the PTO file manually from within PTBatcherGUI and click 
Play. No big deal, compared to the rest.
PTBatcherGUI then randomly crashes with
        enblend: failed to open "image0000.tif": No such file or directory
which is the same message as this one 
https://bugs.launchpad.net/hugin/+bug/1478174 
<https://bugs.launchpad.net/hugin/+bug/1478174>

However, this time the message is true. Despite the log saying
        saving image0000.tif
it is not saving anything at all.
I watch the folder in Finder while PTBatcherGUI is working, and if it is indeed 
saving I can see the file popping up.

I have no web page, and attaching files to posts is frowned upon, so where do I 
go from here?

In my previous life, before I retired, I worked in (mainframe) software 
development.


Vegard Brenna
[email protected]




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