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Skill Level Intermediate
- Hi there. Today we're going to take a look at the Tension deformer which will help you with skinning. Now it's very similar to Delta mush and I find it to be a complimentary tool to it. So here I have a character and I already have some Delta mush on him. So we're going to focus on this area around the arms here. And as you can notice, we're getting some bulging and some unwanted stretching here when he does this. And so what we can do is we can add a Tension deformer to help smooth that out. Now tension is usually used for things that are stretching. I find Delta mush works best for things that are compressing. So armpits would be Delta mush and then anything that stretches would be tension. So let's take a look at this. I'm going to apply tension to the whole mesh and very similar to how we work with Delta mush. So I'm going to go into my rigging tools to form and let's do tension. And if we want we can look at the options here. These are basically smoothing iterations. So how many times is it trying to smooth that? Let's just keep it to 10. A smoothing step very similar to Delta mush and so on. So let's just go ahead and create it with the default options and see what we got. So what I get here is, let's take a look at this post here at around frame 30. So I'm going to go into my Attribute Editor, find my tension modifier. And let's go ahead to Deformer Attributes and let's just dial that out. So I'm going to turn my envelope to 0. And you can see that as I dial in what it does is it subtly smooth these out. And so it creates more even spacing between your vertices. So kind of less stretching of your character. But we can also affect it using a number of other ways. We can certainly smooth it more if we want. We also have a number of constraints. Now if I go up here to his shoulder, you'll see that this Tension deformer has kind of messed things up. Now that's kind of an artifact of that Tension deformer. And if we want we could paint out that area and just paint in the area that we had underneath the arm. Another way to do this to see if we can get it to work with the values that we have. Now I'm going to be using this for stretching. So we've got a number of other options here. We have Squash and Stretch. I'm going to go ahead and turn Squash down to 0 and look at what happens. Is that that basically just goes away. And so if we want we could paint that out, if we want to but again this is kind of stretching when his arm goes the other way. And so we kind of want to keep it that as well. Now if we want we could right-click over this, go into Paint, tension, tension weights and that will be a way to basically paint out and really affect these weights on a vertex by vertex basis. So if I wanted to I could say replace, turn my value down to 0 and we could let's say take out the armpit and maybe this shoulder area here. Or just paint in the areas that we do want to be under tension. So now, we've kind of got that a little bit better. And so this area here and the stretching under the arm here is also responding to tension. So tension with Delta mush are great way to really smooth out and make your skinning a lot more realistic.