mega panorama

[Chris King]

Hi, I’m fairly new to PTGui and I’ve only done simple panorama and
HDR so far. I’ve now got a big HDR panorama project with a lot of
blue sky which is requiring me to do a lot of manual control points.
Is there a way I can break this project up, but so it will still
stitch ok later? I’m not sure how batch stitcher works? Can I break
the panorama up into batches and then stitch them together later
somehow ? Thanks
Chris

[michael crane]

nobody is stopping you doing anything.

Erik made a lenghthy, informative email about just this.
I'll look

2009/12/18 Chris King <kr...@northrock.bm>:

[michael crane]

2009/12/18 michael crane <mick....@gmail.com>:

> nobody is stopping you doing anything.
>
> Erik made a lenghthy, informative email about just this.
> I'll look

I can't find it . anybody elese ?

[Chris King]

Thanks for looking- don't suppose you remember the gist of it ? Or
what you would do?

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[Keith Martin]

>Can I break the panorama up into batches and then stitch
>them together later somehow ?

Yes, just choose which images to include in the Create Panorama panel
in PTGui. But set a new name for the output file each time you make a
change, and save the project with a new name, before you send it to
the batch stitcher.

k

[Joergen Geerds]

hi chris,

we've seen plenty of big pano projects today, foremost jeffrey martins
18 gigapixel spherical panorama of prague (http://www.360cities.net/
prague-18-gigapixels), and the 16 gigapixel pano of dresden (http://
www.dresden-26-gigapixels.com/dresden26GP) (not very impressive in my
opinion).

the trick with sky and ptgui is the complete lack of CP's for the sky
panels.
if you used a repeatable head, you can write down the left and right
coordinate of a single row of sky, go to the image parameters tab,
click&shift-click the images of the row, and click on the arrow on the
lower right. this will automatically spread out the images of that
row... rinse&repeat for the remaining rows of sky.

if you like, read this thread:
http://groups.google.com/group/ptgui/browse_frm/thread/b8f6d0002835d5ab/6bac5c698d7b108c?q=

joergen

[Chris King]

Thanks. I'll work on this....

[michael_alabama]

> the trick with sky and ptgui is the complete lack of CP's for the sky
> panels.
> if you used a repeatable head, you can write down the left and right

> coordinate of a single row of sky, .....

Hello Joergen,
I use a Manfrotto "repeatable pano head" but as I learned from the
recalculated angles of the CP-Calculation the mechanical "repeated"
angles are not very precise....
Does PTGUI tolerate these deviances if I assume the pano head is
precise which in fact is not? I mean, in the case of nadir or near
nadir shots it sometimes would be a great help not to fumble around
with the CPs but trust the angles of the "repeatable" head.

Kind regards
Michael

[Joergen Geerds]

On Dec 19, 7:19 am, michael_alabama <michael.le...@t-online.de> wrote:
> Hello Joergen,
> I use a Manfrotto "repeatable pano head" but as I learned from the
> recalculated angles of the CP-Calculation the mechanical "repeated"
> angles are not very precise....
> Does PTGUI tolerate these deviances if I assume the pano head is
> precise which in fact is not? I mean, in the case of nadir or near
> nadir shots it sometimes would be a great help not to fumble around
> with the CPs but trust the angles of the "repeatable" head.

Michael,

It usually doesn't matter for sky tiles... you will encounter the
occasional cloud tile where you will see some less than ideal blend,
either due to could movement, or slightly off placement, but overall
it doesn't really matter, as long as there is enough overlap between
tiles... in the worst case, you can always select individual tiles in
the panorama editor and nudge them to the place where you think they
belong and render&blend... alternatively, you can render the tiles in
question as layers only in a PSB file, and fix/nudge/move/autoblend in
photoshop CS4 or up.

those tips are mostly valid for higher rez panos, that are not taken
with a fisheye, but with a longer lens... for fisheye projects (which
I almost never do), I think it would be preferable to have at least
some CPs in the bottom part of the image to get the angle right.

i hope this helps

joergen