I'm making a game with Box2D with a top left coordinate system. I multiply positions by an M_TO_PX_RATIO of 10.0f to convert from meters to pixels.
I noticed that when I set gravity to 9.8, the simulation is rather slow. When I set gravity to 9.8 * M_TO_PX_RATIO, the simulation runs at the correct speed, like normal gravity. However, the high gravity causes jittering.
Am I doing it properly? When using a top left, pixel coordinate system, must I do anything else to account for meters to pixels?