Where infrared.city fits
3,204,804 simulations run on Infrared Core (as of 29 Oct 2026).
infrared.city runs 12 models from one engine, Infrared Core, among them wind, wind comfort, sun, daylight, radiant heat and felt heat (UTCI). It works on real 3D building and terrain meshes, in a browser app, through an API and SDK, and in plugins for Grasshopper, QGIS and ArcGIS. Felt heat for 1 km² takes about 5 s once the geometry is uploaded, and 400 km² took 44 s as four 100 km² runs in parallel. Run times are not like for like across tools: area, grid, simulated hours and physics differ. Sun, sky and radiant heat come from ray tracing. Wind comes from an AI model trained on CFD results, not from a CFD run for each request.
- You need to know how a design changes the outdoor climate: felt heat, wind comfort, sun and shade in the streets and squares around a building.
- You compare massing, trees, shade and ground materials for people outside.
- You need an hourly city layer for a digital twin.
Use both
One Click LCA is a web tool to automate environmental assessments, with more than 500,000 LCA datasets. Tally calculates the environmental impacts of material choices directly in an Autodesk Revit model. cove.tool uses AI simulations to help optimise daylight and energy use.
In one workflow: the LCA tool scores the materials and the carbon of the building. infrared.city shows the climate the building makes outside. A material choice can appear in both: ground materials are an input to felt heat in infrared.city and to carbon in the LCA.
We make no claim about the results of these tools. Ask each vendor for its methods and standards.
Sources
- One Click LCA home page , accessed 30 Oct 2026.
- Tally home page , accessed 30 Oct 2026.
- cove.tool: analysis , accessed 30 Oct 2026.