thats an impressive result using this addon, nice render and model!
Im trying to revive this addon for 2.80. thus far i get it working, but not all settings seem to work properly on the child object or materials. It does cutaway as it should, however those settings for the rim dont transfer over properly.
Im not familiar with OSL language, i understand the python code of the addon. At least most parts of it.
Ill post a new repo link and perhaps others with OSL knowledge would like to try or help
Yeah have found that one and works really well. Some minor issues when updating a model. Works best when project is finished