Anecdotally, I've heard the same thing. Lots of articles will say things like, "ILM increased the resolution of StageCraft with its in-house renderer, Helios" but never explicitly say they dropped Unreal or exactly what changed.
Anecdotally, I've heard the same thing. Lots of articles will say things like, "ILM increased the resolution of StageCraft with its in-house renderer, Helios" but never explicitly say they dropped Unreal or exactly what changed.