The task was to animate a simple ball bouncing over a fence. To start with I set the timeline to 1-72 which equals 3 seconds of 24fps animation. I set the first keyframe with the ball in its original position for key 1 by pressing ‘S’ and then moved the ball to the other end and set a keyframe at frame 72, this meant that the ball would glide along the ground from one end to the other.
To make it go over the fence I went to frame 35 where the ball would have been inside the fence and moved it above the fence and set a keyframe. Now the ball bounced over the fence. I then added a 2nd bounce towards the end to create a sense of physics. To do this I added another keyframe at frame 50 where the ball is back on the ground and then another keyframe at 60 where the ball is back in the air but not as high as before.
I used the scale and move tools to move around the keyframes in the graph window so that the animation seemed more realistic and scaled the whole animation down from going 0-72 to 0-48 so now the animation lasted 2 seconds so the ball moved faster.
I rendered a video of the animation using playblast that I have uploaded to dropbox below. Because I hadn’t changed the timeline from 1-72 to 1-48 the video is 3 seconds long for a 2 second animation. I noticed that the video only played back correctly in quicktime and not in divx player / wmp.
https://dl.dropbox.com/u/60783220/Keyframing2.avi
below is an image of the graph of the keyframes that I ended up using for my animation.
creative clifton 