RK4 is suitable for weak forces like changing gravity in space where extremely small drift in the beginning leads to complete failure in the end. The main idea of RK4 is made useless in cases of strong sudden forces because the movement is not continuous enough. If the gravity is just directed towards the ground on earth, RK4 does nothing at all while in the air and when you do collide, RK4 does more harm than good.
DawoodozMember Since 16 Aug 2010
Offline Last Active Jun 15 2016 10:47 AM