knocking down the pins

to make the pins fall down i had to use reactor.

first of all i had to select the alley, pins and ball. i then went onto the reactor tab at the top and went into create object - rigid body collection. in here, it is important to make sure that all of the parts selected were added to the box, and if not it possible to go on the add tab and select another object. selecting each of the three parts in turn, i went back onto the reactor tab, and selected open property editor. here, i selected a mas of 0 for the ball, 20 for the alley, and 10 for the pins. i then selected bounding box for the alley and pins, and bounding sphere for the ball.

the only thing that i had left to do was to animate the ball so it looks like something is knocking them down. i did this by making sure the auto key was on and simply moved it to the last frame.

i had a slight problem that the ball wasn't moving fast enough, so it would get there after the pins were knocked down. there is still that problem on the actual clip, but not on the trial above.