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Copyright Avolites Limited 2010
5. Shapes  - Page 59
 
 
 
 
PearlExpertTitan_Man_v3.doc  29/03/2010 13:28:00 
 
5.   Shapes 
This chapter contains: Selecting a shape; changing the size and 
speed of a shape; spreading a shape across multiple fixtures; editing 
shapes which are running.  
The Pearl, in common with other Avolites consoles, has a shape 
generator (sometimes known as an Effects Generator on other 
consoles). This allows you to quickly create exciting light shows using 
lots of movement and changes, with the minimum of programming. 
A shape is simply a sequence 
of values which can be applied 
to any attribute of a fixture. A 
circle shape, for example, 
applied to the pan and tilt 
attributes, would cause the 
fixture to move its beam 
around in a circular pattern. 
You can set the centre point 
of the circle, the size of the 
circle and the speed of the 
circle movement. 
In addition to position shapes, there are a large number of other 
shapes available in the Pearl. The shapes are defined for a particular 
attribute such as colour, dimmer, focus and so on. Some shapes will 
not work with some fixtures; focus shapes, for example, can produce 
nice “focus pull” effects on fixtures which have DMX focusing, but will 
do nothing on fixtures which don’t have focusing. 
A further category of shapes is the Block Shape. This type of shape 
blocks out other shapes, preventing them from running. For example, 
if some fixtures are running a Circle shape, and then a playback is 
fired which has a Block Pan/Tilt shape on some of the fixtures, those 
fixtures will stop running the circle shape. This can be very useful to 
modify playbacks at showtime when used with the playback priority 
feature (see section 6.7.5 on page 76). 
When you use a shape with more than one fixture, you can choose to 
either apply the shape identically to all the fixtures, or offset them so 
that the shape runs along the fixtures creating “wave” or “ballyhoo” 
type effects. This is called the Phase of the shape.