"Some of the tracks needed updating," said Greenawalt. "Some of them needed light updating, and some of them needed heavy updating. Silverstone, for example, was a complete recapture. Several of our tracks were just plain wrong, either because they were poorly captured and technology's moved on, or the track's changed like Silverstone.
"We're grading the tracks on what state they're in, and if they didn't make the grade they were gone. For me it was less about do I want to deliver this or want to deliver that, I wanted to deliver the next-generation quality - and that meant having the shaders, and the imperfections in the concrete. And the easiest way to get those is to laser scan the track, as that captures those imperfections. We had old references on tracks where if the tracks we had were close we were able to go back to the old reference and recreate that imperfection. By definition that means these tracks take more time than ever."
"We're looking at laser scanning of everything moving forward - that's what it comes down to," Greenawalt said of Turn 10's approach. "We want that to be the standard for next-generation. Our goal's not to carry old content over - and even with all the cars, we did the same process. There were some inaccuracies, and some cars were old-spec that we'd updated from Forza 2 to 3 to 4. But they didn't have the poly count where we wanted it - and they weren't as easy to up-res, so we just recaptured them. Some of them, the spec was good and we could add polygons where we needed them. So it came down to this rating system - and any track or car that wasn't an A grade got either chucked or recaptured."
"We found that we ship a game that has over 200 cars, and they're all to this level of detail with huge diversity. It's been a successful program for us, having the paid DLC. Those that don't want it don't have to get it, and those that want it can buy it. The season pass allows them to buy it as a subscription."