Oct 20, 2010 22:01 GMT  ·  By

Gran Turismo 5 lead designer Kazunori Yamauchi has recently revealed that the game has been plagued by frame-rate issues, but still manages to keep it around 60 frames per second most of the times.

Gran Turismo 5 is probably the most ambitious racing game ever to appear, promising to deliver around 1,000 cars and 75 tracks on which you can race all of these models.

As you can imagine, the game's developer, Polyphony Digital, has experienced quite a lot of issues during the game's development, many of which prompted the multiple delays, including the new one announced last week.

According to Yamauchi, the main problem with GT5 was its frame-rate, and how it couldn't be kept at 60 fps at all times.

That's why the Japanese designer is begging for the forgiveness of players when Gran Turismo 5 will finally be out.

"Our engineers complain every day: 'Isn't it enough that it's in 1080p? Does it have to be 60fps too?' But I think 60fps is very important, so we're working towards perfecting that," revealed Yamauchi.

"There might be times when you have a certain combination of conditions that come together - especially with the weather effects - [when] the game might briefly drop from 60fps, and for that I beg your forgiveness!"

Yamauchi offered a concrete example about how the weather and the number of cars affect the game's rendering capability.

"If you're going from a standing start at No.16 and all 15 cars in front of you are kicking up water, there might not be 60fps at that moment."

Gran Turismo 5 promises to deliver one of the most engrossing racing experiences, and has been expected for quite some time.

Sadly, due to all of the delays, many players are losing their patience, but analysts say that it will still sell a lot of copies.