How do I increase render quality?

ClimateStudio disables the ambient cache (-aa 0), which means that parameters such as (-ar) and (-as) aren’t important for improving rendering quality.

Instead, let your simulation run for more samples or passes (i.e., 100/pixel, 500/pixel, etc.). Each ray has an (-ad 1) and (-ab 6) which is the default (ab 7) in classic Radiance. How many samples you will need is model and aperture size dependent.

We recommend starting a run and observing the differences from pass-to-pass. When the results no longer change significantly between passes, then enough rays have been cast to sample the scene effectively. You can then stop the simulation and set future calculations to that number of passes.

For more information about this process, read our internal validation study.