I was running a radiation studies for a project in Phoenix when I came across this oddity. When creating the context, I used a merge node to easily add/remove/change my geometry. What I noticed was that the order of inputs affected the accuracy of the results, most notably, the self-shading.
With either option (Option 1 or Option 2), if you have the option geometry connected 2nd and context geometry connected 3rd in the merge node, the geometry accurately self-shades. However, if option geometry is 3rd and context geometry is 2nd, then the geometry doesn’t accurately self-shade.
Does anyone know why this is happening? I assume it has to do with how radiance is reading the geometry.HeatMapperOddity.gh (1.5 MB)