How do you "clean up Non Planer" tris in a mesh?

[tmackiiiMEJAE]

I have a mesh of a tank body and I cannot get it to pass the mesh clean-up tool in Maya 2020.4 running on a Mac Pro (early 2013, Intel Xeon chipset running MacOS 11.2.3 'Big Sur') it flags three triangular faces as "Non-Planer".  Last time I took geometry three points define a flat plane in Euclidian space.  I cannot find any hidden faces or artifacts.

How do I fix this?  What have I missed?

[mspeer · Accepted solution]

Hi!

Triangles can't be non-planar, so there is nothing you need to correct.

Just ignore any non-planar detection of Maya in this case, as the detection is based on certain thresholds and not 100 % accurate, because of precision errors.

[tmackiiiMEJAE · Accepted solution]

Thanks for the answer, it makes perfect sense I just needed confirmation.  I still like the Mesh Cleanup tool for finding other problems in my meshes.