Colouring sub mesh

Hi, I’m trying to colour only the overlit portions (>10% occupancy hrs) of the mesh magenta and the non-lit portions (<50% occupancy hrs) grey but it doesnt seem to work when I input the sub_mesh from the LB mesh threshold selector into the custom preview. Any suggestions? Thank you!

colour mesh.gh (348.7 KB)

Hi Geraldyne -
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-wim