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Up to this point, we have only animated Transforms, in other words, position and rotation. But in fact, in 3ds Max, almost anything can be animated, including Modifier Parameters. So if I wanted to, for example, make this object kind of squash and stretch a little bit, kind of cartoony, I can add a Stretch Modifier and animate its parameters. So I will go ahead and select it, and in my Modifier list I will add a Stretch Modifier. And I will play around with the Stretch Parameter here.
I want to change it to a different Stretch Axis. I have got X, Y, and Z. Let's see what these do. So that's not what I want. I think I want the X axis. There we go. That's what I am trying to achieve. Very cool! So what I am going to do is I am going to Set a key for the Stretch Parameter at, let's say, a little bit before it starts tumbling, so kind of like, it will come in and kind of squish a little bit. Somewhere around the point where it stops, I will set the first keyframe for the stretch.
So how about, let's say, at 0:1:21 Frames. I will keyframe the stretch to have a value of 0. All I have to do here is turn on Auto Key, and the little trick you want to do here is tick this spinner up, and that creates a keyframe there. And I know that because the spinner arrows are highlighted in red. I will take it back down again so that now I have got a Stretch value of 0 at this point in time.
So I will go a few frames forward. I can use the Next Frame button to go a few frames forward. 1, 2, 3, 4. Let's say 5 frames forward. And I will adjust the Stretch amount. Let's make it kind of extreme so we can see the result here. So Stretch value of -0.3, and since I have Auto Key turned on, all I do is adjust that parameter and a new keyframe is created. Very cool! So I will go a few frames forward now, 1, 2, 3, 4, 5, 6 or so.
Maybe I will set this to a positive instead of negative, and I can just type it in. Let's put in 0.2 and press Enter, and another keyframe has been created. I will go a few Frames later, 1, 2, 3, 4, 5, 6 or so, I give this a -0.2, -0.2, press Enter, and just lather, rinse, repeat here to add a little bit of squash and stretch to the animation. So I am here, with Auto Key still on, set my Stretch factor to 0.1.
A few more Frames later, let's try -0.1. And finally, back to 0. And since Auto Key was on that entire time, every time I change this value a new keyframe was created. So let's turn off Auto Key and rewind and see what we get. So you are getting a little bit of wobble there.
I will rewind that and Play that back. So it's a bit exaggerated, but I have made it intentionally exaggerated so that you would be able to see the effect. If I select this, by the way, and go into the Timeline, you will see that there are a bunch of gray keyframes, and gray is an indicator that there is some non-Transform parameter keyed at that point in time.
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