Timeline Interaction

 Beams Keyframing Sample Part 2:
    Interacting with the timeline

The timeline shows the time sequence with 30 frames of resolution.
This means that every second is divided into by 30 segments.
The timeline contains a set of cues that form an animation.
The cues are the red markers on the timeline. For the beams, there is always a first cue, set at zero.
Edit any cue by left-clicking on the cue.

A cue can have a set of properties. These are the available properties:

• Angle Modifiers: The angle modifiers include Pan, Tilt and Side angles. These values establish the orientation of the beam in respect to the position’s vectorial base.
• Brightness Modifiers: The brightness establishes the luminosity of the beam; 0 means that the color of the beam is black. 50 means that the color of the beam is reduced to the half of the original luminosity. 100 means that the color of the beam is unchanged during the animation.
• Color Modifiers: This field establishes the color for the beam;
• Diameter Modifiers: This field establishes the start diameter and the end diameter of the beam. The start diameter is the diameter of the lower circle (the one nearest the position) the end diameter is the diameter of the upper circle. These are measured in meters.
• Length Modifiers: this field establishes the length of the beam in meters.

• .

Note that the beam is pointed in the X direction because the angles are all set to zero.
The angle rotations are applied to the beam in a predetermined sequence from this initial point.
The beam is first rotated with the Tilt angle, then with the Pan angle, and finally with the Side angle.
When the Side angle rotation is equivalent, the beam rotates around the X vector of the position.
When the Tilt angle rotation is equivalent, the beam rotates around the Z vector of the position.
When the Pan angle rotation is equivalent, the beam rotates around the Y vector.

The orientation of the beam is calculated in the following way:

• The beam is first orienting asx you see it in the starting figure;
• The beam is then rotated around the Z vector of the position by modifying the Tilt degrees.
• The beam is then rotated around the Y vector of the position by modifying the Pan degrees.
• The beam is then rotated around the X vector of the position by modifying the Side degrees.

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