Forum : Technical Preview

Get all your questions answered about our latest Photosynth Technical Preview.


Topic: Export Point Cloud

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PhilNZ (7 months ago)
The new photosynth 3D is really great allowing wall, walk, spin etc..

Previously it was possible to visualise the point cloud.... are there any plans to allow this with the new version (tech preview as of Dec 2013)?

It'd be great to be able to export the 3D points with RGB for analysis from a walk or wall synth.... will this be possible anytime?
PhilNZ (7 months ago)
OK so I've just read somewhere else that you can do this..

Type C in the view
Type 42
In the debug box click the point cloud option
Then hit F5 (web page refresh)

you can then see the move the virtual camera view angle around and see some points.

Doesn't seem to be as dense a point cloud as the original photosynth?

Still not sure if you can download the point cloud?
NateLawrence (7 months ago)
Photosynth has never officially offered export of their point clouds, however they haven't exactly been hostile toward third party developers who created ways to download them either.
Example: https://getsatisfaction.com/livelabs/topics/pointcloud_exporter

Since they don't offer a way to download photos from synths in their Preview, I doubt that point clouds will be forthcoming either. (I'd love to be proved wrong, guys.)

Since that first rough point cloud exporter that I linked to above, another was made that has since been obsoleted but two others came along over the years, thanks to Christoph Hausner ( http://photosynth.net/userprofilepage.aspx?user=christoph_hausner | http://bit.ly/synthexport ) and Henri Astre ( http://photosynth.net/userprofilepage.aspx?user=dddexperiments | http://bit.ly/photosynth-toolkit )
NateLawrence (7 months ago)
The Photosynth team has since hired Henri to work on their new WebGL viewer ( http://www.visual-experiments.com/2012/07/11/moving-on-again/ ), so he won't be updating PhotosynthToolkit anytime soon, but you could ask Christoph to update SynthExport, as I have done here: http://synthexport.codeplex.com/discussions/472836
NateLawrence (7 months ago)
Ah, good, you found Henri's reply about the point clouds in the new viewer.

Just so you know it isn't necessary to use C to enter global camera before pulling up the debug panel. ツ
NateLawrence (7 months ago)
I meant to link to this FAQ from the Preview above: 
http://photosynth.net/preview/help/#FAQ49
"Can I export the individual photos that make up a synth?

No. At this time, you can't save the individual synth photos to your computer from the Photosynth site. Be sure to save copies of your photos before you upload them to the technical preview."

I know you're asking about the point cloud, not the photos, but I cite it as their current stance.
PhilNZ (7 months ago)
Thanks for the replies natelawrence... 

I've used the pointcloud_exporter before, it's great... but realise it's not an "official" Microsoft tool.

Looking forward to see what functionality is in the final release! :-)
PhotosynthTeam (7 months ago)
If your goal is the pointcloud, you should  stay with the original Photosynth technology. The ones in the new Photosynth aren't as dense or reliable, and as of right now there's no plan to change them.
PhilNZ (7 months ago)
Thanks PhotosynthTeam! Great work!
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