I am facing an issue when trying to create a stl surface from vtk file generated from a open source program. I am not an expert on the program that outputs the vtk file nor it has many parameters that i can control. Opening the file in paraview does show closed surfaces and is exactly what i need but in an stl format.
Opened file in ParaView
Used paraview to extract surface and then exported the surface file as stl.
Open Stl in meshmixer
It seems the stl has alternating face normals. Please help me to solve this problem.
I have exported the stl in other programs (CFD solvers) and the alternating face normal strips are also shown there. So i do not think the problem is with meshmixer.
Could you please explain the step where i should apply the GenerateSurfaceNormals filter?