Enough talk, show me something!
Here we will try to maintain a list of nice demos that we made in the lab.
Interactive Ray Marching in WebAsm
Webviz is an online, browserbased visualization platform for volumetric dataset such as 3D scalar- and vector field, including timedependence (i.e. 4D). Webviz was designed as a social medium platform where researchers can upload and share 3d voxeldataset.
Techniques: WebGL 2.0, WebVR, HTML5 Gamepad API.
Example in browser mode and in virtual reality mode. http://bit.ly/2o8BRt0
Danish height model
Online browserbased 3D visualization of the Danish national elevation model (DHM 2015). The whole country was laserscanned in 2015 to produce an elevationmodel (2.5D) with a horizontal resolution of 40 cm x40 cm which corresponds to a raster size on the order of one terapixels. We have implemented an out-of-core streaming technique to handle these massive amounts of data. This work includes preprocessing of terabytes of data and implementing a backend infrastructure to serve datastreams. In addition to the raw surface model (upper picture), we have experimented with combining terrain, buildings as polygons and pointclouds (lower picture). Techniques: WebGL 1.0, Web map tile service (WMTS) backend.