Ko te Gmsh he puna tuwhera 3D huanga mutunga mesh kaihanga me te miihini CAD kua hangaia me te kai-tukatuka. Ko tana whainga hoahoa ko te whakarato i tetahi taputapu miihini tere, maamaa me te ngawari ki te kaiwhakamahi me te whakauru tawhā me te kaha ki te tirohanga matatau. Ka hangaia a Gmsh ki nga waahanga e wha: te ahuahanga, te mata, te whakaoti me te tukatuka muri. Ko te whakatakotoranga o tetahi whakaurunga ki enei waahanga ka mahia ma te tauwhitiwhiti ma te whakamahi i te atanga kaiwhakamahi kauwhata, i roto i nga konae tuhinga ASCII ma te whakamahi i te reo tuhi a Gmsh (.geo files), ma te whakamahi ranei i te C++, C, Python or Julia Application Programming Interface (API).