tailieunhanh - Mastering Autodesk Maya 2011 phần 4

7. Di chuyển đường cong bodyCtrl trở lại và ra trên trục z, và bạn sẽ thấy rằng chân phía trước bên trái Các giá trị trước và PostInfinity Dịch Z kênh được thiết lập các chu trình với khoảng trống do đó, nó liên tục các bước như lỗi này là di chuyển tới lui. | 286 chapter 5 animation techniques Figure The Pre- and PostInfinity values of the Translate Z channel are set to Cycle With Offset so it continually steps as the bug is moved back and forth. 7. Move the bodyCtrl curve back and forth on the z-axis and you ll see that the front left leg now walks with the bug. 8. Save the scene as . To see a version of the scene to this point open the scene from the chapter5 scenes directory on the DVD. Copying and Pasting Driven Keys The trick at this point is to create the same driven key arrangement for the other five legs in the easiest way possible. You can achieve this using Copy and Paste. The important thing to remember is that to paste driven keys from a channel on one object to another you should have one driven key already created for the target objects. 1. Continue with the scene from the previous section or open the scene from the chapter5 scenes directory on the DVD. 2. From the Animation menu set choose Animate Set Driven Key Set to open the Set Driven Key window. 3. Select the bodyCtrl curve and load it as the driver. 4. Select all the leg control curves except the frontLeftLegCtrl. 5. Click the Load Driven button. 6. Make sure the Translate Z channel of the bodyCtrl curve is at 0. Set the Translate Z of the five leg control curves to -1. 7. Select the Translate Z channel in the upper right of the Set Driven Key window. In the lower left make sure all the leg control curves are selected. 8. Select the Translate Y and Translate Z channels in the lower right see Figure . driven keys 287 Figure Set an initial driven key on the Translate Y and Translate Z channels of the five remaining legs. 9. Click the Key button to create an initial key for the five legs. You can close the Set Driven Key window. 10. Make sure the bodyCtrl curve s Translate Z channel is at 0. Select the frontLeftFootCtrl curve. In the Channel Box highlight the Translate Y and Translate Z

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