Cyclops Daylight Factor results

Hi @pmcmm,

Thank you for the kind words! Glad you see value in it.

Regarding the simulation, the results in Cyclops as with Honeybee/Radiance depend a lot on the settings that are used. In the file you have uploaded Radiance is running with 3 ambient bounces (-ab), 2048 ambient subdivisions (-ad), a 145 patch Tregenza sky and a traditional overcast sky. Cyclops is running at higher settings with 6 ambient bounces, 10,000 ambient subdivisions, an equal area/aspect sky with 512 patches and a standard overcast sky. The radiance settings also use ambient interpolation since the (-aa) parameter is set above 0. Cyclops does not use ambient interpolation and is using pure ray-tracing.

As an example of how the settings affect results, just by changing the detail_level in honeybee from medium to high you will get a 30% higher score.

All of the differences above are affecting the results. Please see attached file where the radiance parameters are updated to match the settings used in the Cyclops analysis. The average score that is compared in the script now differs by approximately 2% (7.98 vs 8.17).

test_cyclops_updated_settings.gh (67.7 KB)

I posted previously here regarding the relationship between Cyclops settings and Radiance parameters. There is also more info on the sampling settings in the Cyclops documentation.

You can ignore the Actual/Expected batteries you are seeing on the canvas. We only use those for testing in our internal CI/CD pipelines to ensure that the scripts produce the expected results as we implement new updates.

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