Comments on: PhotoSynth WebGL panorama viewer

By: Eek

Eek — Wed, 29 Feb 2012 12:33:16 +0000

Have any ideea where I can find some code example of setting a 3D plane to stay in the same place?

All i want is a white box to stay somewhere on the image

By: Henri

Henri — Tue, 28 Feb 2012 21:46:35 +0000

@eek: You need to place a 3d plane in the scene. I'm sorry but I don't have a lot of free time to create an example. I'm working on another webgl related project using http://code.google.com/p/webgl-loader/ to load very big model.

By: Eek

Eek — Tue, 28 Feb 2012 19:34:48 +0000

Hi Henri

Got a question maybe you can help me I really like the webGL rendering of three.js, and I was wondering what’s the easiest way to add an hotspot (for example on the door) to this exemple:

http://mrdoob.github.com/three.js/examples/webgl_panorama_equirectangular.html

Waiting forward for you reply

Thanks in advance!

By: Henri

Henri — Tue, 03 Jan 2012 22:01:36 +0000

@Nate: panorama are indeed stored using the same deep zoom format (one image per cube face). But I don’t think that I’ll be releasing the exporter because I’m concerned about the possibility of exporting gigapixel panorama… My exporter could be used to steal panorama created with an iPhone or ICE which is not fine for me!

By: Nate Lawrence

Nate Lawrence — Sat, 24 Dec 2011 01:24:51 +0000

Henri, sorry to keep asking about panorama export, but I’m wondering how difficult it would be to save a panorama’s tile pyramid and only make whatever changes are necessary to load it into HDView http://bit.ly/msrhdview as we can our own panoramas from ICE when exporting to a Deep Zoom Tile format. (My assumption is that this is very closely related to what Photosynth is already using.)

I would also be interested in a tool that automatically converts a panorama hosted on Photosynth’s servers to a QuickTime VR panorama.

I have had two separate people ask on the Photosynth forum about how to save their panoramas’ cube map to view offline.

The first wanted to then convert it to work with other viewers. http://photosynth.net/discussion.aspx?cat=01b6f15f-42eb-49cb-a221-ed56615e1c47&dis=7f2b6d4d-76b8-43a3-b00b-1f05ae24e528

The second simply wanted to view their iPhone panoramas offline on their own computer. http://photosynth.net/discussion.aspx?cat=01b6f15f-42eb-49cb-a221-ed56615e1c47&dis=5524d92a-f665-4416-ae4e-3bba6b32ea10

By: Pablo

Pablo — Tue, 13 Dec 2011 13:48:54 +0000

sorry for that horrible spelling.

By: Pablo

Pablo — Tue, 13 Dec 2011 13:48:09 +0000

Hi there. Yess it works perfectly with “small” sized stuff, rocks cars etc… photographed “around”. My project is not for that particular building, that was just a teste, I’m building a racing games, and for building I’m considering an image based modelling solution. At this stage I dont yet feel the presure to find a solution for the buildings, but I keep testing to see what the way could be. Once arrived the moment, if I still havent found a solution by myself I’ll contact. You cant anyway use my synth to test your soft. I dont want the model, but if you process it, an screenshot would be interesting.

By: Henri

Henri — Sat, 10 Dec 2011 18:15:07 +0000

@Pablo: I was going to point you to 123d catch but I guess that you’ve already find it by yourself . We are obviously not producing model for free at acute3D but if you’ve a project for this reconstruction you can contact us directly via: acute3D contact page.

By: PAblo

PAblo — Sat, 26 Nov 2011 22:14:13 +0000

acute 3D is looking trully amazing. The big con is that is more marketed to big projects rather than individuals and this leaves us out of the game. Anyway, if you guys find a moment to play, this scene I made might drop interesting results.

http://photosynth.net/view.aspx?cid=6f1a1a0f-c5e0-403e-b3ec-88d83a8cc791

I already sent to acute via youtube. Just so you have the link too.

By: Henri

Henri — Sun, 06 Nov 2011 16:30:46 +0000

@Nate: To be able to display the photosynth pano/synth (with thumbnail) I need:
- to implement a megatexture solution (to handle the progressive download/display)
- Microsoft to add missing cors header (otherwise displaying thumbnails would be very slow: javascript would have to decode JPEG).
- Microsoft to give me some insight about undocumented json parameters.

Concerning VisualSFM: it is really better than Bundler! Although the Bundler version packaged with PBA is really fast too. On the technical side, I have some remarks:
- IMO the big missing feature of VisualSFM is a linear unstructured matching (as OpenSynther does) -> matching would be linear not O(n²).
- I found a strange memory policy for the feature extraction process (all image are loaded in memory before GPU processing?)
- for the dense reconstruction, well I just can recommend acute3D technology instead of CMVS/PMVS as I’m working at acute3D

BTW, do you have seen our demo of PhotoSynth -> acute3D?