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There was no way we could fit the whole map of gta3 in PS2 memory.
Streaming involves loading models from the DVD as the player moves around.

“The closer models physically are on the DVD, the faster they are loaded,” Vermeij explains.
“This is because the DVD needs to accelerate/decelerate as the head moves to a different track.”
But it still wasn’t enough, and assets like roads or buildings wouldn’t load in properly.

Instead, Vermeij says, “we had no option but to slow the player down.”
Vermeij points to Portland, the game’s most densely-packed island.
To help out, the artists changed the island’s road layout to slow players down.


















