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@folkertvanheusden @OpenSCAD Just emitting the povray script per frame s enough (foo-0001.pov, ...), then the rest can be a Makefile outside (Like we currently emit a bunch of *.png files and then use the Makefile to make the animation in the end).

I would not invoke PovRay from OpenSCAD, it is just too resource hungry. That is better in a batch job.