This has actually happened to me twice so far and it's also something similar to what happened to me while playing Warhawk. In Warhawk all textures essentially turned black, including my character but the game was still playing and functioning.
The game was running fine, then I started the next round and it started to do exactly what yours did above.
My PS3 is very well ventilated, I clean out the dust,etc. I was concerned it was my graphics card frying or something but I just turned off the PS3 and restarted it and it was fine.
I have a 60GB launch model, but I'm not sure. Good to hear I'm not alone.







