OGC adopts 3D Tiles as Community Standard
3D tiles, submitted to the OGC by a team led by Cesium, is designed for streaming heterogenous 3D geospatial content to clients for visualization. Expanding beyond traditional 2D and 2.5D streaming of maps and terrain, 3D Tiles supports 3D models such as point clouds, 3D buildings (exterior and interior), trees, imagery, BIM/CAD models, and photogrammetry. 3D Tiles is currently implemented in more than a dozen software products.
Bringing techniques from graphics research, the movie industry, and the game industry to 3D geospatial, 3D Tiles defines a spatial data structure and a set of tile formats designed for 3D, and optimized for streaming and rendering. The tile formats are:
- Batched 3D Models – for 3D buildings, photogrammetry, BIM/CAD models, etc. built on the glTF™ open standard for 3D model transmission from the Khronos® Group.
- Instanced 3D Models – for trees, bolts, valves, etc.
- Point Clouds – for massive point clouds, including per-point attributes.
- Composite – for aggregation of tiles of different formats.
Patrick Cozzi, Cesium Lead & 3D Tiles specification co-editor, commented “The massive increase in 3D geospatial data captured by sensors on satellites, aircrafts, drones, and autonomous vehicles across industries from GEOINT to Smart Cities to Construction Management has created the need for...