WebTundra based VirtualOulu at Web3D Conference

University of Oulu’s realXtend Tundra & Webtundra based VirtualOulu environment was presented and analyzed at Web3D 2016, presented in late July in Anaheim, California. Article is in open access at ACM: VirtualOulu: collaborative, immersive and extensible 3D city model on the web

VirtualOulu has been in testing for long already, is hosted on Meshmoon and features Jonne Nauha’s early stab from a couple of years ago on kd-tree based scalable scene management, with prioritized asset loading etc. The test for measurements in the article is this walk from the market square to the cultural center near town hall:

It runs pretty nice on modern compus and mobiles even now :)

There’s some download time calcs & fps measurements in the article, and a fps improvement test with worker using mesh loading for the dynamic on-the-fly streaming kind of loading work. We are looking at testing optimizations there by using glTF which we’ve tested early on a couple of years ago initially.

The modelling process to create the city model in collaboration with several companies is described in the document. The modeling guideline table is our basic tool for it.