Image Description, by Billy Zelsnack
Here is my latest toy. A demo can be found at:
www.shapemaniac.com/bziotd.php
I love physics. Working on physics has been some of the most rewarding
programming I have ever done. I can't emphasis how cool it is to build some
sort of contraption out of a bunch of parts and it JustWorks. I remember a
couple of years ago when I saw the first Ipion demo. It was just so amazing
to me. Now I have built something along those lines myself and it feels
really good.
It is definately not commercial quality physics or anything yet, so it is
still pretty easy to break things. Currently there are no spatial structures
for anything so performance has a ways to go. The pairwise collision is
implemented as brute-force triangle-mesh against triangle-mesh. The
triangles you see are the triangles being collided. A better plan is to
usually use composited primitives for most things, but I wanted to get the
tri-mesh/tri-mesh case working well first.
The framerate is limited to 50fps which is the same rate the physics are
updated at. If you start dropping more than a few fps below 50, the physics
will run slowly and things will appear to be in slow-motion. I have a 800mhz
machine with a GeForce4ti and the worst I have seen it was 42 fps.
BTW. I currently am looking for interesting and challenging work (on or off
site). The more interesting the work, or the more cool the location, the
better.
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