Smooth surface from Revit files - solution is here

[pekka3]

This is an update to already closed but still a very fresh case:

https://forums.developer.nvidia.com/t/how-to-activate-smooth-surface-for-a-mesh-in-kit-108/344213/14

It is an Omniverse issue and also issue with SimLab USDZ exporter. They both mess us the Revit 2026 scene. The only real solution is to use Okino Polytrans.

Here is a video of showing the same scene, without any extra tweaks done in Revit for this official demo content scene:

Smooth mesh OK exported from Okino Polytrans

With Richards tip I can now activate the smooth surface in Kit 108. Thanks Richard!

Here is the deeper explanation from Okino Polytrans / Robert Lansdale:

“

What we will do is to properly weld all of the disparate
vertices of the mesh data. My “Okino CAD Optimizer” will kick in during the
conversion process from DWF which no other software uses. See attached screen
snapshots. This is what most people would ignore or not know about. It’s why
people actually purchase and use Okino software since it is executed on every
MCAD file import. It is what cleaned up your geometry, hierarchy and overall
scene complexity. So, I didn’t just fix your problem but I also made your
scene 10x faster and more optimal.
”

And here are the images he attached with the above explanation.

So now we know. also big hout out to Andrzej Jakubowski, Official Revit instructor and power user, helping me to solve this issue!

Pekka

[Richard3D]

Thanks for the update. However, this is still not an Omniverse Issue, as I stated. It is about having good, welded geometry coming INTO Omniverse. As your post confirms, and so does my solution, USD Composer has the ability to smooth geometry, as long as you have properly joined vertices. If one exporter does a better job, than another great. But this is all done outside of Omniverse Kit.