<< what renderer did you use for that nice "sinewave" rendering ?

The funny easy tricky SimLab Composer! (not free: 4$/month hobbyist-student)




and at the end you can use some of these 2 other free ones !
from a Sketchup model by NextDave

Sketchup Make (free)


Simlab


then Fotor


and finally Fotosketcher + Fotor