[hugin-ptx] Re: Hugin for games

2010-07-08 Thread cri


On 5 Lug, 08:52, David Haberthür david.haberth...@gmail.com wrote:
 Hey Christian

  I've used Hugin to make some equirectangular 360x180 panorama from
  within some videogames (most racing and flight simulators, my
  favourite kind of videogames). Just would like to share them if you
  are interested:http://www.flickr.com/search/?q=panogamew=39174608%40N04

 They look very interesting, great idea. Did you take the screenshots by hand 
 while looking in the different directions or did you automate the process?

I thought of automating the process (in particular for Flightgear that
is very customizable with xml) but I've almost zero knowledge on
programming so they were taken by hand


  From a technical point of view, I noticed that autopano-sift-C had a
  lot of problem getting the control points right so I ended up by
  identifying them manually most of the time.

 This might be because there's no real lens information from your screenshots. 
 Did you play around with the Lens Type to see what difference that makes?
 Greetings, Habi

No, I've just inserted, when requested from Hugin, a FOV that was
reasonable. In a couple of cases was only needed the assistant tab.

Regards
Cristian

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[hugin-ptx] Creating a planet, how to best hide the camera?

2010-07-08 Thread Torsten Mohr
Hi,

in the gallery there are some amazing panorama photos created with
hugin.

I understand that i need the normal set of photos to create a normal
panorama
picture PLUS one or more photos of the ground.

This is where the tripod stands and / or the sun casts a shadow of the
camera
and its operator.
I wonder what is the best technique to get a photo of the ground, to
hide the tripod
and to not have a shadow of the camera and its operator?


Thanks for any hints,
Torsten.

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Re: [hugin-ptx] Re: Hugin for games

2010-07-08 Thread Hal V. Engel
On Thursday 08 July 2010 12:13:34 pm cri wrote:
 On 5 Lug, 08:52, David Haberthür david.haberth...@gmail.com wrote:
  Hey Christian
 
   I've used Hugin to make some equirectangular 360x180 panorama from
   within some videogames (most racing and flight simulators, my
   favourite kind of videogames). Just would like to share them if you
   are
   interested:http://www.flickr.com/search/?q=panogamew=39174608%40N04
 
  They look very interesting, great idea. Did you take the screenshots by
  hand while looking in the different directions or did you automate the
  process?
 
 I thought of automating the process (in particular for Flightgear that
 is very customizable with xml) but I've almost zero knowledge on
 programming so they were taken by hand

In FlightGear you can pause the simulation (use the p key) but you can still 
do things like pan or zoom your view or change the view position.  So taking a 
set of screen shots for a panorama by hand is a fairly simple process.  But 
automating it should be fairly simple as well at least for someone with some 
programming experience.  But I think this would require using nasal rather 
than XML although you would use XML to map a key or button to the nasal 
script.

 
   From a technical point of view, I noticed that autopano-sift-C had a
   lot of problem getting the control points right so I ended up by
   identifying them manually most of the time.
 
  This might be because there's no real lens information from your
  screenshots. Did you play around with the Lens Type to see what
  difference that makes? Greetings, Habi
 
 No, I've just inserted, when requested from Hugin, a FOV that was
 reasonable. In a couple of cases was only needed the assistant tab.
 
 Regards
 Cristian
 

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Re: [hugin-ptx] Creating a planet, how to best hide the camera?

2010-07-08 Thread Nicolas Pelletier
Hi,

For how to shoot the Nadir image, there are many ways. I use something
similar to what is described here:
http://www.rosaurophotography.com/html/technical6.html

http://www.rosaurophotography.com/html/technical6.htmlThe most important
thing is to test it and be sure you can place the camera the closest to it's
npp.

As for the shadows... position the nadir shot to avoid them, and
gimp\photoshop them out :P

Good shooting!

nick

On Thu, Jul 8, 2010 at 2:24 PM, Torsten Mohr tm...@s.netic.de wrote:

 Hi,

 in the gallery there are some amazing panorama photos created with
 hugin.

 I understand that i need the normal set of photos to create a normal
 panorama
 picture PLUS one or more photos of the ground.

 This is where the tripod stands and / or the sun casts a shadow of the
 camera
 and its operator.
 I wonder what is the best technique to get a photo of the ground, to
 hide the tripod
 and to not have a shadow of the camera and its operator?


 Thanks for any hints,
 Torsten.

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Re: [hugin-ptx] Creating a planet, how to best hide the camera?

2010-07-08 Thread Emad ud din Butt
You can take handheld shot with tripod removed. Hugin will automatically
remove tripod from scene or you can use hugin mask feature. If you have
ultrawide angle lens like 10mm than it will be very easy. But shoot at least
5 images. REMEMBER if your nadir is not alligned it will disturb whole
panorama allignment.

I only have 38mm lens and its really difficult to make nadir and zenith. But
I have found a very nice way of doing it.

   1. I manually stitch nadir and zenith in GIMP or Photoshop.
   2. First stitch panorama with hugin in 360 x 180.
   3. Now load it in GIMP.
   4. Goto Filters  distort  polar coordinates
   5. Now you will see your panorama in Planet view. (This method is
   basically used for making planets. But I have hacked it for nadir zenith
   stitch :)
   6. Now you will see black hole in center of panorama. You can place
   zenith or nadir there. You have to use little post processing here. No pains
   no gains :))
   7. Now goto polar coordinates and convert it back to equirectangular
   projection.

IT Can be lot easier if your dear developers add viewpoint correction
feature like PTgui in Hugin. For Nadir you move back a little from tripod.
Take a shot of nadir with camera tilted down and than in PTgui add view
point correction for only that picture

and if you have tripod option like Nicolas post than its simple way of do
it.

I hope it helps. If anybody has other tips please share. As I have to learn
it hard way. Its good to share so that other people dont have to waste time.




On Fri, Jul 9, 2010 at 6:58 AM, Nicolas Pelletier 
nicolas.pellet...@gmail.com wrote:

Hi,

 For how to shoot the Nadir image, there are many ways. I use something
 similar to what is described here:
 http://www.rosaurophotography.com/html/technical6.html

 The most important thing is to test it and be sure you can place the camera
 the closest to it's npp.

 As for the shadows... position the nadir shot to avoid them, and
 gimp\photoshop them out :P

 Good shooting!

 nick


 On Thu, Jul 8, 2010 at 2:24 PM, Torsten Mohr tm...@s.netic.de wrote:

 Hi,

 in the gallery there are some amazing panorama photos created with
 hugin.

 I understand that i need the normal set of photos to create a normal
 panorama
 picture PLUS one or more photos of the ground.

 This is where the tripod stands and / or the sun casts a shadow of the
 camera
 and its operator.
 I wonder what is the best technique to get a photo of the ground, to
 hide the tripod
 and to not have a shadow of the camera and its operator?


 Thanks for any hints,
 Torsten.
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-- 
_
Emaad
www.flickr.com/emaad

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