You have a free easy one render https://www.simlab-soft.com/3d-products/simlab-composer-lite.aspx

who blends quasi all nurbs & poly formats! (don't take the 3DM for MOi but the other Step , iges, sat...
the max resolution is 1900 * 800 (who is not really a problem because there are tones of free Upscalers
online or local ( https://www.upscayl.org) or any free AI progs