Always convert your Curviloft output into a Group immediately. Then right-click > Softening/Smoothing and set angle to 45°. This hides the triangulation lines without deleting geometry.
plugin, developed by the prolific , is widely regarded as a cornerstone extension for any curviloft plugin sketchup 2015 66
Curviloft provides three primary tools for creating geometric skins: Always convert your Curviloft output into a Group