I changed CCBuilder>>wallLayout to have 10000 elements instead of 1000. That had a significant impact on the speed of the playground. Doing CCBuilder (cmd-O) took >15s. It looks like something is getting precomputed prematurely. Rotating and zooming the resulting view worked well. Stephan _______________________________________________ Moose-dev mailing list Moose-dev(a)iam.unibe.ch https://www.iam.unibe.ch/mailman/listinfo/moose-dev