I recently compared the Daylight Factor results of an IDA-ICE daylight simulation with the results of a Ladybug Tools simulation and got very different results particularly in relation to the minimum Daylight Factor in the rooms, with the Ladybug Tools simulation showing much higher minimum Daylight Factor values (almost 200% higher in some cases).
Has anyone looked into this as well? Or can advance what the reasons for these differences might be?
IDA-ICE also uses Radiance as the simulation engine therefore I was expecting the values to match much better. Radiance rendering parameters are the same in both programmes. There are some differences regarding the grid resolutions between the models (could not make these match 100%), but I find it difficult to think that could be the reason for the big differences I get for the minimum.