Epic Games isn't just offering up its ubiquitous current-gen game creation tool Unreal Engine 3 to Oculus Rift developers, but also its next-gen tool, Unreal Engine 4. Epic Games VP Mark Rein told Engadget as much during an interview at this year's Game Developers Conference in San Francisco, repeatedly stating he's "super bullish" on the Rift, all the while rocking an Oculus pin on his exhibitor lanyard. "Oh, for sure," he said when we asked about UE4 support for the Ri