Join Aaron F. Ross for an in-depth discussion in this video Freezing transforms, part of Learning Maya nCloth 2012.
Before I create nCloth, I want to talk a little bit about freezing transforms. Ideally, your nCloth objects should have Scales of 1, 1, 1, and that's pretty much the case for all objects in Maya. If you've used the Scale tool, and changed the scale of your objects -- maybe I decided I didn't want it to be quite so large; maybe about 1 meter on a side, rather than 2 meters -- then I could scale these both down to a value of 0.5. If I do that, then the best practice is to freeze the transforms.
As you probably know, freezing transforms will restore these values to 0. In other words, whatever the current values are, those become the new 0, and whatever the current Scale values are, those get reset to 1, or frozen to a value of 1. Here we go; Modify > Freeze Transformations. I can go into the Option box for that. You can see I can choose to freeze any one of the transforms. I am going to do all three, and click Freeze Transform.
Now when I select either one of these, you will see that we've got Translate and Rotate values of 0, and Scale values of 1. This is really helpful, not just to prevent any possible issues with the dynamics, but also so that we can always get these objects back to the starting positions. If we've moved them around, or done strange things to them, we can always get them back to where they were by simply just setting all their Translate and Rotate values to 0. Simple enough! It's just a best practice to always freeze the transform before creating a dynamic simulation.
AuthorAaron F. Ross
- Understanding the nucleus solver
- Adopting a scale convention
- Adjusting nCloth and nRigid attributes
- Creating and animating nConstraints
- Editing nConstraint membership and influence
- Smoothing nCloth with subdivision surfaces
- Storing and manipulating simulation data with nCache
- Improving simulation quality and efficiency
- Dressing an animated character
- Painting dynamic attributes such as Stickiness
- Simulating many objects such as falling leaves
Skill Level Intermediate
1. nCloth Basics
2. Simulating Dynamic nCloth
3. Directing nCloth
4. Optimizing Performance
5. Integrating nCloth with Animation
6. Simulating Special Effects
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