Click on any side to change gravity...
geomPlane_left geomPlane_left -10 0 0 geomPlane_right geomPlane_right 10 0 0 geomPlane_top geomPlane_top 0 10 0 geomPlane_bottom geomPlane_bottom 0 -10 0 geomPlane_front geomPlane_front 0 0 10 geomPlane_back geomPlane_back 0 0 -10