Isadora Manual v1.3 - TroikaTronix

You can easily find out the type of a property. Just move the mouse cursor over the
property’s value edit box and then don’t move it for a moment. An information box
will appear, that shows you the property’s name, type, and minimum and maximum
values. It looks something like this:
Understanding Value Scaling
When connecting two numeric properties whose ranges of values are the same, you
don’t need to think too much about what happens to the values as they pass through
the link: when a value is sent out of the output, that same value appears at the input
to which it is connected. Even when both properties don’t vary between 0 and 100,
Isadora behaves in a consistent way by scaling the range of output values to match
the range of inputs values. For example, when an output that varies between 0 and
127 (e.g., a MIDI value) is connected to an input that varies between 0 and 100,
Isadora will scale the values proportionally so that as the output goes from 0 to 127,
the input will go from 0 to 100.
Isadora’s default behavior works great when you want an input property to vary
over its entire range. But what if you want a finer degree of control over an effect,
so that a value will vary between 20 and 40 instead of 0 to 100? Or if you need an
input value to go down when the output value driving it goes up? This tutorial
shows you how to accomplish this.
• Close any currently open Isadora documents. Then choose File > Open and
locate the file called “Tutorial 8” in the “Isadora Tutorials” folder, located in
the same folder as your Isadora application.
• This document has three scenes. Click on the Scene called “Tutorial 8”. In it
you will find a Sound Player actor, and a Mouse Watcher with its horz pos.
output connected to the speed input of the Sound Player. Note that the sound
started playing as sound as you clicked on the Scene, even though a Sound
Player normally doesn’t start playing unless you trigger its restart input. In
this scene, we added an “Enter Scene Trigger” actor to start the sound. The
Enter Scene Trigger sends a trigger whenever the Scene it is in is activated.
Thus, activating the Scene starts the sound automatically.
• Now, move the mouse left and right. You will hear the sound go from a low
pitch to a very high pitch, as its playback speed varies from 0 to 10 times
normal speed. Note that Isadora is already scaling the values: as the Mouse
Watcher’s horz pos. varies between 0 and 100, the Sound Player’s speed input
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