Don't use RK4 in games. It is not symplectic, which means that it doesn't conserve enery. Also, I believe that like other higher order integators, it behaves poory with velocity dependent movement. Use symplectic Euler /semi-implicit Euler (at smaller timestep) instead. If you need the high accuracy, instead use David Whysong's excellent integrators that have 4th, 6th, and 8th order accuracy.
h4tt3nMember Since 02 Apr 2008
Offline Last Active Jul 13 2016 11:54 AM
For the last decade and a half Mike has made a living off traditional blacksmithing, recreating iron age and viking era tools and weapons. Courses and school projects take up a big part of the time too, sharing the interest of ancient metal with other people.
As one of very few people in the world, Mike has learned the ancient craft of turning local ore into iron and steel in the same fashion as his ancestors, the danish vikings. The metal is folded and processed in much the same way as by japanese swordsmiths, and is forged into replicas of prehistoric tools and weapons.
Like so many others, Mike started programming on the Commodore 64, and later on the Amiga 500. While not having made coding a way of living, Mike has maintained his interest in this field and is today a self taught programmer, spanning across several languages, from HTML and php over the mean and fast FreeBASIC to C++. The main driving force is the ever-present fascination with physics simulations and all their applications.
When not doing any of the above, Mike is spending his time building, maintaining, and sailing viking ship replicas, horse riding, skiing (when the winters are snowy), and reading. Mike is also a pretty good draftsman, but he doesn't use that skill much at the time.
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