Re: ObjC 3D Engine
Re: ObjC 3D Engine
- Subject: Re: ObjC 3D Engine
- From: Jonathan deWerd <email@hidden>
- Date: Mon, 25 Jun 2007 17:06:12 -0600
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(@everyone) Thanks for your feedback! I am planning to put it on
sourceforge within the next few days, and you will be able to see
what I have (which isn't a 3D view that you can drop in your nibs
*yet*, and I plan on making some sweeping changes to some parts of
the structure to get mesh rendering working as seamlessly as
possible). I will also make a big post describing what I have done,
the general structure, current conventions, todo list, etc. In the
meantime I may or may not be actively participating in the discussion
here.
As for the speed question, I have a few things to say:
1) Bottlenecks can be optimized. I have done tests and made a design
pattern that delivers near C speed on calls (basically like CF but
without a full C interface).
2) When cached, an ObjC dispatch takes about 2.5x what a non-
dynamically-loaded C call does (try it if you don't believe me), and
sometimes even less because the ObjC call hits the cache for you on
the first part of your object.
3) C++ and C should be about the same as far as speed goes. C wins
the simplicity award by a mile though.
4) There may or may not be features in ObjC 2.0 that may or may not
help iteration performance. I am looking at you, publicly known foreach.
5) If not, core foundation or C++ to the rescue!
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