Look at all the trouble I caused before I even go to the moon
(No, not really, sorry no moon rocks
First of all, it wasn't about the rules. Prior arts or outside resources are certainly fine.
I was just trying encourage everyone to look beyond rules and winning/losing.
The rediculous example above was just to show that everyone can submit something awesome that is
1. not meaningful to the submitter
2. not meaningful to Irrlicht
The above is only an extreme example, no one was doing that, but I understood (at least I think so xD) XXChester's concern, and it wouldn't be good if people steer to that direction.
I responded mainly because I felt bad that his/her opinion just got dismissed as a concern about legal issue (which I assume it wasn't why he/she brought it up).
p.s. The example does fulfill the listed rule "Only irrlicht renders allowed" because the definition of render is... well it doesn't matter, the point is not about the rules.