@nehon There is no need to tinker anything, the "-post-jar" target should be enough, all required JARs are already available, even those containing native libraries. I don't know why the skybox doesn't work, I'll have to investigate. I don't know why there is some tearing, several people gave me their "old" laptops, I will probably be able to reproduce this bug with one of them.
@erlend_sh I have just looked at the source code, it seems correct but it would be fine if contributors avoided unnecessary modifications of import clauses so that I can focus on real changes. I will run an existing example to test this patch. Please don't misspell my pseudo.