Timeline

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The Timeline

 

Previous tutorial: Simple Bongo animation. Part 2: Views.

 

We've improved the timeline control in Bongo 2.0 a great deal.  The graphic below shows the entire expanded timeline with all of the Bongo 2.0 features.

 

 

 

Timeline Window Navigation

 

Change the view of the timeline window using the mouse.

Scroll the mouse wheel to zoom in or out in the Timeline window.

Drag the right mouse button in the Timeline window to move forward and backward through time.

To reset the view

  • Click the Reset timeline view button to reset the Timeline window to the default view.

 

 

Timeline Slider

 

Moving the timeline slider changes the current time in the animation. The text on the slider displays the current tick number.

Click the arrows to the left and right of the slider to move the slider forward or backward one frame at a time.

Click and drag the slider to move back and forth through the animation. This is called scrubbing. The text on the slider displays the current tick number.

 

To set the current timeline slider position

Drag the timeline slider to the desired tick number.

- Or -

1. Right-click the Timeline, and from the menu, choose Set Timeline Slider Position.
2. In the Set Timeline Slider Position dialog box, enter the tick number for the slider position.

 

 

Timeline Ticks

 

In Bongo, time is measured in ticks. The vertical marks represent each tick in the current animation. The blue current tick indicator points to the current tick.

When you render an animation to a video file, you can choose how long you want the animation to run. Since the number of ticks in a Bongo animation is not fixed to the number of images (frames) in a video file, you can easily change the frame rate and video length for various targets, for example, CD distribution or the web.

Expand or contract the number of ticks in an area by inserting or deleting ticks.

 

To set the number of ticks displayed on the timeline

  • In the Ticks edit box, enter the number of ticks to display.


To insert ticks

  1. Right-click the Timeline where you want to add ticks, and from the menu, choose Insert at tick.
  2. In the Insert Ticks dialog box, enter the number of ticks to add at that location. Ticks will be inserted and all keyframes to the right of the ticks will be pushed to the right.


To delete ticks

  1. Right-click the Timeline where you want to delete ticks, and from the menu, choose Delete at tick.
  2. In the Delete Ticks dialog box, enter the number of ticks to remove a that location. Ticks will be removed and all keyframes to the right of the ticks will be pulled to the left. Keyframes at the deleted ticks are deleted.


To set the number of ticks displayed on the timeline

  • On the timeline, in the Ticks edit box, set the number of ticks.


To set the timeline length in seconds

  • In the Bongo Document Properties dialog box, under Animation preview, specify the Timeline length in seconds setting.

See also: Bongo Document Properties.

 

 

Animation Limits

 

The blue bar and end markers show the animation limits - the tick where the animation starts and stops.

To set the start and stop ticks for the animation

  • On the Timeline, drag the ends of the blue limits marker.

- Or -

  1. Right-click a blue limits marker, and from the menu, choose Edit.
  2. In the Bongo Animation Limits dialog box, enter the tick number for the start and stop positions of the animation.

- Or -

  1. From the Bongo menu or toolbar, choose Render Animation.
  2. In the Bongo Render Animation dialog box, set the Start tick and Stop tick numbers.
  3. Click the Apply button.

See also: Render Animation.

 

To hide the limits markers

  • Right-click a blue limits marker, and from the menu, choose Enable.

– Or –

  • Right-click the Timeline, and from the menu, choose Show Animation Limits.


To show the limits markers

  • Right-click the Timeline, and from the menu, choose Show Animation Limits.

 

 

Keyframe Markers

 

Keyframe markers indicate the location in time of recorded key frames. Keyframe markers are color coded.

When you select objects or activate an animated viewport, Bongo displays the keyframe markers for all of the selected objects along the timeline. For unselected objects and non-current viewports, Bongo displays ghosted keyframe markers.

 

Keyframe colors:

Red - Objects

Yellow - View

Green - Document

Blue - Layer

Cyan - Light

Magenta - Render Content

 

Window select multiple keyframes to edit them in the Keyframe Editor and Curve Editor.

 

Scaling Keyframes

The BongoScaleKeyframes command changes the distance between selected keyframes so they are closer or farther apart.

Before scaling.

After scaling.

 

To re-space keyframes

  1. At the Choose option prompt, select the keyframe type.
  2. Select or type the appropriate object, view, light, layer, document property, or render content (material, texture, or environment).
  3. At the Origin tick prompt, type the tick number the keyframes will be scaled around.
  4. At the Scaling factor prompt type the amount to scale the keyframes.
  5. At the Scaling direction prompt, choose the direction for the scaling.

 

Direction options

Left

Scales the keyframes toward the beginning of the timeline.

Right

Scales the keyframes toward the end of the timeline.

Both

Scales the keyframes in both directions from the Origin tick.

 

 

Animation Preview Controls

 

The Play and Stop buttons control the animation preview.

To start the animation preview

  • On the Timeline, click the Play button.

- Or -

  • Right-click the Timeline, and from the menu, choose Play. The Play button changes to a Pause button.


To pause the animation preview

  • On the Timeline, click the Pause button. The timeline slider and the animated objects stop at the current tick.


To resume the preview

  • On the Timeline, click the Play button.


To stop the animation preview

  • On the Timeline, click the Stop button.

- Or -

  • Right-click the Timeline, and from the menu, choose Stop. The timeline slider resets to zero.


To set properties for the preview

  • From the Rhino File menu, choose Properties.
  • In the Document Properties dialog box, click the Bongo page, under Animation preview change the settings.

See also: Bongo Document Properties.

 

 

Transformation Controls

 

The transformation controls fine tune the animated motion, rotation, or scale of selected objects at specified keyframes.

The transformation controls are activated when one or more objects are selected and the Animate button is activated.

Switch to Position Mode

Position mode changes the location of the object at the tick. You will be able to see the change to the object in the viewport.

To change an object's position

  1. Select an object.
  2. Click the Animate button.
  3. Move the Timeline Slider to the tick where you want a keyframe to be placed.
  4. On the Timeline, click the Switch to Position Mode button.
  5. Edit the x, y, or z-coordinate values.

 

Switch to Rotation Mode


Rotation mode changes the rotation angle of the object at the tick.

To rotate an object around its pivot

  1. Select an object.
  2. Click the Animate button.
  3. Move the Timeline Slider to the tick where you want a keyframe to be placed.
  4. On the Timeline, click the Switch to Rotation Mode button.
  5. Edit the x, y, or z-rotation angle values.

 

Switch to Scale Mode


Scale mode changes the scale of the object at the tick.

To scale an object about its pivot

  1. Select an object.
  2. Click the Animate button.
  3. Move the Timeline Slider to the tick where you want a keyframe to be placed.
  4. On the Timeline, click the Switch to Scale Mode button.
  5. Edit the x, y, or z-scale values.

See also: Animation Overview.

 

Enable/Disable IK

 

Turns inverse kinematics (IK) on and off. This setting is on by default. It can be annoying to make many changes to an IK system while waiting for the IK to re-calculate itself. You might want to use this button to turn it off while you experiment with several settings.

See also:Inverse Kinematics (IK).

 

Reset Timeline View

 

Restores the timeline view and resets the slider to 0.

 

Timeline Context Menu

 

The menu changes depending on whether objects are selected, animated are active, whether those objects are animated, and so on.

To view the timeline context menu

  • Right-click the Timeline.

 

Timeline Context Menu Options

 

Compact mode

Shrinks the Timeline window to display only the timeline, slider, and keyframe markers. The preview and transformation controls are hidden. The preview controls can still be accessed from the context menu.

Collapse keyframes

Makes keyframe markers shorter so the timeline takes up less vertical space.

Timeline ticks

Sets the number of ticks shown on the timeline.

 

Insert at tick

Inserts ticks.

 

Delete at tick

Deletes ticks.

 

Play

Plays or pauses the animation preview.

 

Stop

Stops the animation preview.

 

Set timeline slider position

Sets the current position of the timeline slider.

 

Reset

Restores the timeline window to its default view and resets the slider to 0.

 

Show curve editor

Displays the Curve Editor.

 

Show object looping marks

Controls display of object looping markers for all objects.

 

Show animation limits

Controls display of animation limits marker.

 

Add keyframe

Adds a Keyframe at the tick closest to where the you clicked.

 

Show tick numbers

Controls the display of the number of ticks shown on the timeline.

 

Smooth scrubbing

By default, the objects and views are tweened smoothly between the ticks while scrubbing the timeline slider. Turning smooth scrubbing off causes the tweening to move only when exactly on a tick.

 

Next tutorial: The Animation Manager.

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