To Render a Velocity Element for an Animation Sequence

1. On the Render dialog Render Elements panel Render Elements rollout, click Add. In the Render Elements dialog that appears, highlight Velocity, and then click OK.
2. Highlight the Velocity element in the Element Rendering list.
3. On the Velocity Element Parameters rollout, turn on Update, then render several test frames. Choose frames where object velocity appears to be the greatest.
4. After each test frame, make a note of the Maximum Velocity value. If you need to do so, enter the largest of these values as the Maximum Velocity to use.

   Having a specific Maximum Velocity value will give you more accurate velocity data.

5. Turn off Update.

   Now the Maximum Velocity will remain constant.

6. Render the animation.