Cloud-based BIM was a primary scope, thanks to big data volumes that are usual for BIM software projects. They require large storages and imply dispatching of work between engineers working on specific areas and layers of buildings, bridges, civil and industrial objects. These BIM requirements were in good correspondence with existing cloud web capabilities, including established large-scale platforms like Amazon Web Services (AWS), Microsoft Azure, or Google Cloud Platform (GCP). Also, less number of competitors in CAD software for BIM (w.r.t. MCAD) propelled interest of start-ups and established companies to develop brand-new BIM-in-cloud software services and platforms.
Our first case in the BIM Cloud was a complex project that combined Architecture, Structure, Mechanical and Engineering design, as well as other related modules. It was focused on providing wide support of BIM entities typical for Autodesk Revit or Solibri Model Checker (IFC-based quality control solution). Usage of 3D modelling kernel made it possible to have all needed capabilities for creation and editing of sophisticated shapes.
In order to meet extensive requirements like fire-prevention, ventilation, accessibility, and many others, we have developed a dedicated BIM verification module in this 3D BIM application, which also took care of collision detection. Thanks to integration with the 3D scanning process and point cloud data management, later stages of the BIM lifecycle, including dynamic construction control and maintenance of buildings and constructions, were covered. The developed solution was full-functional 6D BIM, with detailed planning of related costs, resources, tasks, workers, and dates.
Later we decided to meet contemporary CAD market needs by developing our own 3D browser platform with BIM and MCAD as primary goal areas. So we created LEDAS Cloud Platform, a multi-user 3D-in-web system with support of many files formats and collaboration capabilities. It is better to get more details about LCP on the dedicated page.
Several companies licensed LCP in order to speed up their web BIM product development. Part of them were focused on civil BIM projects in the Cloud, while others were more interested in industrial 3D web systems and applications. LCP was a good start for the licensees, but most of them wanted to provide a richer set of functions to their customers.
Models of electric power plants, bridges, and large buildings can contain thousands and even millions of elements. Millions of elements translates into even more millions of polygons. These numbers exceed the capabilities of even the latest Web browsers. To deal with them, we implemented a number of new LOD (levels of detail) techniques and heuristics. A LOD system uses several levels of representation of each object, from coarse (faster) to detailed (slower). This allows users to see both the big picture (with coarse LOD) and detailed structures of particular elements (with detailed LOD) at reasonable FPS (frames per second) rates.
Typical LOD optimization tactics include simplified representations of objects; sorting and visualizing objects on the basis of size; taking camera position into account; and instancing of otherwise identical elements.
We deployed additional techniques so that our LOD routines are properly integrated and well tuned:
Contact us to implement the LOD techniques in your web solution!