The following example illustrates how to use animation sweep to create a model that resembles a spiraled animal’s horn.
To use animated sweep
- In the NURBS menu set, select Create > NURBS Primitives > Circle.
A circle appears in your scene view.
- Move the circle 8 units along the Z axis.
- Scale the circle until it has a radius of approximately 3 units.
- Rotate the circle 90 degrees (so that it is now perpendicular to the grid).
- Move the circle’s pivot to the origin, so that it will rotate around the origin in the animation.
- Press or (Mac OS X) to display the circle’s pivot point.
- Enter the values 0 0 0 in the Transform Attributes entry field, or drag the pivot point to the origin.
- Press or again to exit pivot point mode.
- Switch to the Animation menu set (from the drop-down menu or press F2).
- Ensure that the Current Time Indicator is at the start of the Time Slider, and set a key for the circle’s transforms.
This is the starting position of the circle for this animation.
- Move the Current Time Indicator to the end of the playback range.
- Set Rotate X to 720 to rotate the circle approximately two revolutions.
- Move the circle up the Y axis approximately 10 units.
- Scale the circle to 0.
- Set a key for the transformations (press s).
You have now established the end state for the circle.
- Press Play to view the animation of the circle.
- Select Animate > Create Animated Sweep > .
The Animation Sweep Options menu appears.
- Ensure that the Time Range is set to Time Slider, and that the By Time value is set to 1.
- Click the Anim Sweep button.