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Now we are going to edit the expression.
Lets assume you have decided that your Cube rotates too slow. You would like it to rotate faster around its Z axis. We will use a constant to multiply the value of time.
1.Go to the Xpressionist interface and alter the statement like this:
Cube.Roll_Z = time * 25;
2. Click OK.
Now the Cube will spin around its Z axis 25 times as fast. It will have a Z rotation value of 100 when the time slider is at 4 seconds. You can use standard arithmetic operators and constants to modify values in an expression.
Summary:
In this section you have learned how to
- add channels to Xpressionist
- add them to the expression editor window
- use the predefined variable time
- modify an expression with standard arithmetic operators and constants
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