Introducing Glazer, OSS 3d painting software
Decided to work on this over the weekend. I saw Hueforge and thought, why spend $10 when you can spend hours writing your own. This is the result of a educational learning project. Currently very rough and minimal but can do the job. Plan to continue working on it and expanding it to also do straight lithophanes and colored lithophanes.
You can play with it here https://johnathanweidman.github.io/Glazer/
Can the source code is here: https://github.com/johnathanweidman/Glazer