This is just a simple Makefile to generate animated images from OpenSCAD
files as input. It takes a list of .scad files, converts those to PNG
relying on the OpenSCAD script to set the camera position and then joins
the images with morphing transition using ImageMagick.
Tested on Debian/Testing with ImageMagick 7.0.8-39.
$ convert --version
Version: ImageMagick 7.0.8-39 Q16 x86_64 2019-04-11 https://imagemagick.org
Copyright: © 1999-2019 ImageMagick Studio LLC
License: https://imagemagick.org/script/license.php
Features: Cipher DPC HDRI OpenMP
Delegates (built-in): bzlib fontconfig freetype pangocairo png x xml zlib