Thanks for the offer to help out with LG3D. We have been a little quiet lately, but it'd be great to let more people know about lg3d. If you would like to contribute you'll need to send in a signed JCA (have a read here:
https://lg3d.dev.java.net/contribute.html), and for translations apply for a Content Developer role in the
lg3d.dev.java.net project (it might be worth applying to lg3d-core). Once you've done that it might be worth putting a note here if you don't get a response back (I can ping a couple of people).
In the mean time if you'd like to start translating you can check out the cvs and go from there, and also have a read of
https://lg3d.dev.java.net/ja/trans-support/lg3d-translation-filestyle_en.htmlThanks again.
Kirk