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09-20-2022 10:37 AM
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A nice YouTube video.

by Redrobes on 01-31-2022 at 05:00 PM
I was pointed at this informative video from Gleb Alexandrov who is showing how anyone with a suitable CUDA enabled machine can do some nice 3D object generation using all free open source tools - but principally Meshroom and Blender.

The video has some useful tips about improving the generation of the model in Meshroom by inserting some custom steps into the standard path and then also goes into some considerable depth about

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A few results from Meshroom.

by Redrobes on 10-22-2018 at 12:05 PM
In my last entry I mentioned that Meshroom had been released. I had to borrow a friends machine with an nVidia card on it that would handle CUDA as the program will not run without it. The computations required to generate the 3D mesh from the photos are quite intense and with many photos it takes a lot of time. CUDA is the graphics card support which allows the Graphics Processing Unit (GPU) to handle that complex graphics based math instead of the normal CPU. Since GPUs are custom built for this

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Continuing with the photogrammetery thing...

by Redrobes on 08-20-2018 at 09:15 PM
Time marches on and developers have been busy. There are some new photogrammetry apps out there and one looks particularly good.

Released (recently) in Aug 2018 a project my the name of Meshroom has frozen a build for release for both Windows and Linux.

If you head over to AliceVision website there are some links there to download the software as prebuilt binaries:

Before you do however you should

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Denser point clouds for better resolution 3D mapping.

by Redrobes on 10-31-2016 at 09:13 AM
Its been a while since I updated my blog about 3D mapping terrain.

As predicted, those tools to make denser point clouds have appeared in open tools:

OpenSFM is a really good tool. Even before this update I have used it to generate quite dense point clouds of 3D models so this new development sounds interesting indeed.

Dont miss the link in there for OpenDroneMap.

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Updated 10-31-2016 at 09:21 AM by Redrobes


Stitching points into a model using MeshLab

by Redrobes on 02-04-2011 at 09:20 AM
Ok so we have the points, lets make a mesh - a polygon model of the building. In MeshLab clean up some of the stray points. You can do that by selecting points and deleting them. The selection icon is the one with three dots and the cursor arrow. Click that and drag out a box over some points and they turn red to show they are selected. The delete is on the far right which is the three dots and a triangle with a big X through it.

Once you have the vertices for the building without

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Updated 02-04-2011 at 09:26 AM by Redrobes


Awards Showcase - 5 Awards

Image Description
Lite Challenge Winners' Compass Name: Lite Challenge Winners' Compass
Awarded for winning the Monthly Lite Mapping Challenge!
Issue time: 01-19-2023, 02:05 PM
Issue reason: For winning the Nov/Dec/Jan '23 Lite Challenge with the entry Seeing the Red Mist....
10 Year Anniversary Challenge Name: 10 Year Anniversary Challenge
Awarded for participating in the 10 year anniversary celebration world mapping challenge.
Issue time: 04-28-2016, 09:36 AM
Issue reason: For Participating in the 10th Anniversary Guild World Challenge!
Tutorial Author Name: Tutorial Author
Awarded for hosting a 5-compass rated tutorial at this site.
Issue time: 08-28-2012, 04:09 PM
Issue reason: For contributing create a seamless texture out of anything tutorial
Tutorial Author Name: Tutorial Author
Awarded for hosting a 5-compass rated tutorial at this site.
Issue time: 08-14-2008, 08:44 PM
Issue reason: For contributing Bitmapped Images - The technical side of things explained.
Tutorial Author Name: Tutorial Author
Awarded for hosting a 5-compass rated tutorial at this site.
Issue time: 05-09-2008, 05:59 AM
Issue reason: For contributing Thatching for Dummies Tutorial