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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
There are other examples like NonEuclidean which are also very impressive, but use traditional rasterization and view portals to get a similar result.
There's a few, notably noeuclid and euclider. Both of these are "true" non-euclidian renderers in that they use raytracing to actually simulate the traversal of light through all spaces in the scene.
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Hence, a higher number means a more popular project.