This release adds the --rotations option, which completes #3 , and also enables using --edge block to have thicker black outlines when requested. Nothing else new here, but hopefully --rotations, which enables making 16-direction, 24-direction, or even 360-direction sets of facing directions, will help someone out.
Instructions are the same as before. If you're on 64-bit Windows (any version from Vista or later should do), get spotvox-windows-x64-0-0-6.zip, unzip it, and you can drag-and-drop .vox models on spotvox.exe or spotvox-turntable.bat to generate renders. For other OSes, you need Java installed (8 or newer), and once you unzip spotvox-all-platforms-0-0-6.zip you can run the terminal command java -jar spotvox.jar MyModel.vox to render a .vox model in the same place called MyModel.vox . Both of these can use the command line to specify extra options, run spotvox.exe -h or java -jar spotvox.jar -h to see the help.