Guided Denoising https://github.com/bldeng/GuidedDenoising
https://github.com/tatsy/L0Denoising
https://github.com/Sunil7545/RoFi-Mesh-Denoising requires java
https://github.com/AlonzoQuio/MeshDenoisingViaL0Minimization
https://github.com/daweidavidwang/Mesh_Denoiseing_BilateralFilter basic
https://github.com/nini-lxz/NLLR
https://github.com/mohammadul/meshlib
https://github.com/smallocean/MeshlessFilteringWIthScreenedPE
https://github.com/henilsarang/FaceMesh
Mesh filtering https://github.com/bldeng/MeshSDFilter