Use the SubD Extension from the Extension Warehouse to turn your mesh into quads and turn straight edges into curved ones.
Watch video SketchUp: Organic Curves with the SubD Extension online without registration, duration hours minute second in high quality. This video was added by user ProfDrafting 17 September 2016, don't forget to share it with your friends and acquaintances, it has been viewed on our site 9,130 once and liked it 71 people.