User Guide

CHP. 6 WORKING WITH EVENTS
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Using opacity envelopes
Opacity envelopes set the overall opacity and allow
you to fade video events in and out. This affects the
transparency of the event in relation to background
events on lower tracks. These background events can
be other video events or background colors. For more
information, see Using generated media on page 187.
Setting a video event’s opacity
When you place the mouse pointer at the top of the
event, the pointer changes to a hand cursor ( ) that
you can use to lower the event’s overall opacity.
1. Place the mouse pointer at the top of the event.
2. When you see the envelope cursor ( ), drag the
opacity envelope to the desired level. As you drag,
Vegas displays the event’s opacity level.
Setting an event’s fade in and out
The event handles allow you to change a video event’s fade in and out. You can also change the type of curve
that the event uses to control the fade in or out.
1. Place the mouse pointer on a handle (upper corners of the event). The
pointer changes to the envelope cursor ( ).
2. As you drag the cursor, the opacity envelope appears. Vegas displays
both the time in the event and the opacity level as you drag.
Changing an event’s fade curve
You can set the shape of the fade curve (fast, linear, slow, sharp, or smooth)
that an event uses to increase or decrease the opacity over time. To access the different fade curves, right-
click anywhere in the event’s fade-in or -out region and choose
Fade Type from the shortcut menu.
Tip: If you use the same fade curve frequently, you can set it
as a default for all new video event envelopes. For more
information, see Editing tab on page 275.
Using velocity envelopes
You can use velocity envelopes to change the speed of a video event over time. To view a velocity envelope,
right-click the event and choose
Insert/Remove Velocity Envelope.
1. Right-click an event and choose Insert/Remove Velocity Envelope. The velocity envelope appears on the
event as a blue line.
2. To increase the speed, drag the envelope up. To slow the video down, drag the envelope down.
Adding velocity envelope points
When combined with points, envelopes can be used to animate velocity changes.