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Current time:0:00Total duration:1:18

Video transcript

you probably noticed that in order to get smooth motion he ended up having to pose the ball on pretty much every frame the computer is helping but it's still a lot of work to get something that looks smooth instead of linear interpolation we can use something called Bezier curves if you've ever used design or drawing software you've probably used bezzie occurs without even knowing it this is named after a French engineer pierre bézier who invented this method to describe the smooth curves needed when designing cars these kinds of functions made up of Bezier curves are called splines I also mentioned them in the first video Bezier curves come with these handles that let us control the shape of the graph between our key poses we get this nice curve that eases out of the first pose and ramps down to the second one if you look at how these values map you can see something that looks just like our timing chart now you try it out you should be able to get much smoother motion using Bezier curves