Autodesk 62205-051408-9001 User Guide - Page 314

12 Creating Animations Changing Animations On-the-Fly Using multiple viewports, you can play back an animation in one viewport and make modifications to the animation in another. As you do this, you see the animation change in the viewport that is playing back. To preview changes to an animation on-the-fly: 1. For the sake of this example, create a simple animation. For instance, animate a layer with two keyframes moving across the viewport. 2. Select the two-viewport layout . Viewport layout options Linking Moving Layers Use parenting, hinging, and targeting to link moving layers to other layers in the workspace. You can also align a layer with its motion path. Parenting Layers Use parenting to make one layer (the parent layer) control the movement of another (the child layer). To parent a layer: 1. Select the child layer. 2. Do one of the following to select the parent layer: • Select the parent layer from the Parent list to the right of the Composite Controls panel. Note: You can also use any multi-viewport layout. 3. Disable the Feedback button. 4. Press mode. to make sure you are in Loop Play 5. Press HOME to move to the first frame of the animation, then press to begin playback. 6. Click the other viewport to make it active. 7. Use the scrub bar to move about halfway through the animation. 8. In the Transform controls, adjust the layer's rotation by 360 degrees along any axis. The animation updates on-the-fly in the other viewport. Parent list • Click the Pick button and click the parent layer in the active viewport. When you move, rotate, or scale the parent layer, the child layer is also affected. To remove the parent-child relationship between layers: 1. Select the child layer. 2. Select None from the Parent list. Parent list The link between the two layers is removed. 298