• Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint
Share this Page URL

Chapter 15. Keyframe Animation: One Step... > Animating the Rotation of the Dummy ...

Animating the Rotation of the Dummy Object

Shortly after the dummy object comes to a stop at Frame 70, you'll want it to rotate 90 degrees counterclockwise, as seen from above. You'll use the Auto Key animation function again to generate the rotation keys. However, you do not want the rotation to start at Frame 0. Instead, it should begin at Frame 75 and end at Frame 90.

Exercise 15.2: Controlling the Start and End of an Object's Rotation

Open Ch15_plane02.max from the last exercise or from the CD-ROM. Save the file to your project folder with the name Ch15_plane03.max. Select the dummy_control object if it's not already selected.

You don't want the dummy object to start rotating until Frame 75. Drag the Frame slider to Frame 75 and right-click on the Frame Slider button. In the Create Key dialog, clear the Position and Scale checkboxes. You don't need to create keys for those two actions; you just need to create one for the rotation (Figure 15.5). Click OK. You do not need to have the Auto Key toggled on at this point.

Figure 15.5. You are recording the current rotation of 0 degrees for the dummy object at Frame 75 as a starting point for the rotation, which will end at Frame 90.

Toggle the Auto Key button on and drag the Frame slider to Frame 90. On the main toolbar, click the Select and Rotate button and, at the bottom of the display, toggle the Absolute Mode Transform Type-In button to Offset Mode Transform Type-In. Enter 90 in the Z-axis Transform field (Figure 15.6) and press Enter. Toggle the Auto Key off and scrub the Frame slider back and forth to see the dummy object rotate in the Perspective viewport.

Figure 15.6. You can transform an object an exact amount by using the Offset Mode Transform Type-In toggle.

Click the Play Animation button to see the ani-mation in the Perspective viewport. The dummy object moves forward between Frame 20 and Frame 70, pauses for five frames, and then slowly rotates for 90 degrees counterclockwise. Stop the animation and save the file; it should already be called Ch15_plane03.max.


The keys in the timeline are color coded: Selected keys turn white, position keys are red, and rotation keys are green.



Not a subscriber?

Start A Free Trial

  • Creative Edge
  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint