Apple iPhone TechTalk 2009 Tricks
Summary
Bandwidth is not your friend Allan confirmed that it is actually very hard to get bottlenecked by the GPUs vertices capabilities (not talking about fillrate of course). I thought that maybe the GPU/driver could perform a batch if the data were properly aligned but then we increase the bandwidth consumption and the slight improvement is lost. I wanted to know why iPhones ES implementation doesnt support render to depth texture and why we did not have floating point (yes, it would help my Variance Shadow Mapping to be decent). Overall the talk was a great time, the catering was excellent (geez didnt know a veggie sandwich could taste that good ! Not really Apple or iPhone related but its what Ive been reading recently: "Linkers and Loaders" by John R. Levine and "The Art of Multiprocessor Programming" by Maurice Herlihy and Nir Shavit : I highly recommend both of them.
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