Advanced Vibration Effects
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You need to have the MP4 video codec installed. If can't see the movie go here and download the DivX player, for instance.
In this
tutorial, you will learn how to edit the vibrate filter for the main camera.
After completing this tutorial, you'll be able to apply the vibrate effect
to your scenes. The main camera will vibrate twice in our scene.
Let's create a simple 11-second movie.
Choose the 'Outer Space' atmosphere
from the 'Other' collection and delete the 'Ground'.
Create a few rocks.
(In my scene,
I am using four).
Make one of the rocks bigger than the others.
Select the 'Animation' tab 
in the 'Object properties' window and select the 'Main camera' in the
'World Browser'.
Select 'Standard' or 'Smoothed' in the 'Motion tab' 
and close the 'Mover Wizard'.
For better vibration, press the 'Animation
toolbox' button 
and check the 'Look ahead' option in the 'Selected motion'.
Create
a suitable path for the 'Main camera' and create a simple animation path
for all of the rocks. Try to render.
Two of the rocks will come close to the main camera and the rest of the rocks
will go through the 'Main camera'. For example, one of the rocks will
hit the 'Main camera' on the 7th second of our movie.
So, we need a vibrate
effect after 7 seconds and we want to stop the vibration after 8
seconds. Well, let's do it and you will see how easy it is.
Select the 'Main camera' if it is not selected and press the 'Animation
toolbox' button
in the 'Animation' tab of the 'Object properties window'.
Check 'Vibrate'
and change the 'Overall vibration intensity' if you need a stronger vibration.
Right
click the 'Variation of intensity' box and select 'Edit filter'.
Add a
few extra dots on the graph by double clicking on it.
Make the graph like
in my picture below.
The
value for the bulge will be 7/11 = 0,63.
Enter 0,63 to the 'Position X'
field.
Now, we need to calculate the position when the vibration will
stop. 8/11 = 0,72.
Make the top of the bulge something about 0.75 (the
'Position Y' field).
By controlling this, we can change the power of the
vibration effect.
The first rock that hits the 'Main camera' is smaller
than the second one.
So, the vibration must be less.
At the end of the scene, we need to vibrate the 'Main camera' again. Now
it will be from the 10th second to the end of our movie.
Your 'Variation
of intensity' filter will be something similar to my picture.
The next
bulge value (Position X field) will be 10/11 = 0,9.
As you can see, by editing the 'Variation of intensity' filter, we have
full control over the vibration effect.