Fiji – An Image Processing App. Useful for converting images to the RAW format needed by Unity’s Terrain component.
https://github.com/openMVG/openMVG/
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Use itSeez3D mobile app to create high quality color 3D models of people and objects like a pro!
http://itseez3d.com/
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QGIS
A Free and Open Source Geographic Information System
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After a very long time, a huge rewriting process, and a strongly renewed effort the new MeshLab version is finally out!
MeshLab JS 16.01 Tutorial
A new release of MeshLabJS, the javascript version of meshlab is out. Obviously being a totally client based, run-in-browser application it is sufficient to open its web page to get the latest version. :). For a mesh processing system that runs inside your browser a new version is just the deploy of the html+js code on the server.
http://meshlabstuff.blogspot.com/2016/02/meshlab-js-1601-tutorial.html