Thank you, that is a good start! That works, see example. ( I will need to flip some normals in the faces or manually allow for faces that look away from the camera to be visible, but that can be achieved.)
For Mac users (and I asume Linux too): replace C:\temp in line no 951 with /tmp/ or any hardcoded, absolute folder.
So, in general,… why has this script received no attention on this forum for the last 9 months? Has it indeed been replaced with something else? (#FOMO)