For me the more easy classical Real Time render (and free in 1920 * 800, or 1920 *1080 if you take a previous one) is Simlab Composer!
https://www.simlab-soft.com/3d-products/simlab-composer-old-download.aspx
Accept of course some nurbs format from Moi Iges, Step, Sat but no the 3DM ! ;)
all other Poly formats OBJ etc...ngons...
if you want use the "free" versions don't Download the "Try" versions!

https://simlabfr.weebly.com/light.html (la version "light")
But now all translations are automatic! :)
https://www.simlab-soft.com/3d-products/simlab-composer-lite.aspx

I have made the French Version of the UI and some other little things for it! ;)
https://simlabcomposer.weebly.com (le manuel etc)

I use only this one (SimLab) or TwinMotion I don't want headaches on my old days for my pilouteries! :)
here SimLab


No
Hexagon2 is not like Bryce it's just a true free Modeler (Polys + Nurbs) not a Landscape maker! ;)
Bryce is (was) also one of the first French prog of "Unreality" Thx Eric Wanger! ;)

Bryce can be replaced by a true easy one: TwinMotion - it's not a true modeler! (free for personal use) for me the more powerful & easy for public!
New version releasead today! :)

https://www.twinmotion.com


I f you want a true Boat hull modeler try the free PolyCad ( not so easy than Moi but...)
I have made the French translation of the site! (an heavy one) ;)
https://moiscript.weebly.com/polycad.html