Page 499 - ProShow Producer Manual

499

Quadratic Curve the quadratic curve is
similar to the linear ramp, save that it
curves as it increases in value, rather than
moving in a straight line. The increase
becomes more dramatic as you move
further along the curve. You can control
the quadratic factor, or height of the end
of the curve, the linear factor, or rough
“angle” of the curve, the constant, or
value of the starting point, and the offset,
which is when the curve will start.

As an example of using a waveform, consider making a layer pulse. You
could achieve this affect by applying a modifier for brightness, and adding
an action to add based on a Sine Wave amount. As the wave pulses up and
down, so will brightness.

The different types of waves listed above each have their own shape, which
define how the values change. If you want something that changes
gradually, a Sine Wave might work. For abrupt changes, a Block Wave
might be better. Want something that gradually builds, but quickly goes
away? Try a Sawtooth Wave.

When using a wave function, the Wave Begins At drop-down-list will let
you specify the starting point for the wave. You can choose to have the
wave start at the beginning of the show, the slide, or the keyframe. This
option is useful for creating effects that span slides or keyframes. For
example, if you want the effect on Slide 2 to start right where Slide 1 left
off, you can’t let the wave reset at the beginning of the slide, or the effect
would appear to start over. By setting this option to ‘Start of Show’, the
wave would reset only at the start of the show, not at the start of each slide.

If you are trying to line up effects across slides using the same wave
function, set this to ‘Start of Show.’ If you are trying to line up effects across
keyframes, set this to ‘Start of Slide’ to prevent the wave from being
recalculated for each keyframe. If you do want the wave to reset at each
keyframe, choose ‘Start of Keyframe.’