whenever shell models are analyzed with structural FEA, it’s very convenient to display the results on them using solid representation instead of the regular surface one. ParaView already has a Linear Extrusion filter but for non-planar shells (cylindrical, spherical or otherwise curved) it would be necessary to extrude in normal direction, not just in one of the global axes. In this thread a solution was already proposed:
It seems that it wouldn’t be difficult to implement a filter like that in ParaView. Thus, I decided to ask for such feature to be included in upcoming versions of the software. I wonder what you think about it.