News from the famous voxel rendering engine Unlimited Detail by the australian company Eyclideon. Deemed vapor ware by some they have now released information about Geosphere a software for viewing large geospatial voxel data sets. The technology can now also be licensed in form of an SDK.
Still some of the criticism, eg. that animation and lighting can’t be done in voxels, voiced by people like John Carmack might be right after all and the reason for the shift from the field of gaming to geospatial visualization where this is not a requirement.
They improved on the Microsoft implementation with their algo called KinFu Large as they are able to scan multiple volumes in on pass allowing to scan larger scenes in one go.
The point cloud library (PCL) is available as prebuild binaries for Linux, Windows and OSX as well as in source code from their svn repository. The code relies heavily on the NVidia CUDA development libraries for GPU optimizations and will require a compatible GPU for best results. Information on how to setup your own build environment and the required dependencies is available from their site.
SMAA is a powerful alternative for FXAA and similar post-processing anti aliasing techniques. Some of the new features include local contrast analysis for more reliable edge detection, and a simple and effective way to handle sharp geometric features and diagonal lines. This, along with the accelerated and accurate pattern classification allows for a better reconstruction of silhouettes. Also it looks much better for scenes in motion.
Check out the video below for a comparison with several other algos. The video is also available as a download in better quality.