Unsmooth Rendering from Solar Radiation

Hi guys, I’m a newbie, learning LadyBug on my own.
I tried doing a radiation analysis. The results look fine, but I’m not sure why there is a weird poka dot or some gray out looking leopard spots as shown instead of the smooth looking results from the examples.

I’m not sure if it has to do with like grid size or “disFromBase”.

I found a similar post where the answer was to “uncheck” the preview of the brep, which I did, but it still have this unsmooth look. Is this because I need to make the “brep” geometry meshes?

radiancetest.gh (393.9 KB)

You need to also hide the geometries in Rhino.

PS: Please set your profile picture!

You can turn off the preview of geometry.