Can I set a surface thickness just like the solidify in blender software?
Blender “Solidify” modifier uses shrinkwrap algorithm. As far as I know, there is no such filter in VTK but you can put it together from VTK filters.
We have an extension for this in 3D Slicer that implements this using VTK in Python: https://github.com/sebastianandress/Slicer-SurfaceWrapSolidify
It can be used as is within 3D Slicer’s Segment Editor module but it would be nice if someone could generalize it a bit and contribute it as a filter to VTK.
Thanks, lassoan. there is no document about how to use it for a 3d model.
In 3D Slicer, you can convert a model node to segmentation node by right-clicking on it in the Data module and choosing the corresponding menu option.