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Old 18-06-2004, 11:19 PM   #1
Gun-Kata
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Default scripts, expressions, and procedures

What's the difference between a script, an expression, and a procedure?
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Old 18-06-2004, 11:35 PM   #2
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Expressions are in procedures and procedures are in scripts? Nice avatar btw
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Old 21-06-2004, 10:02 AM   #3
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no...

a procedure can be defined and used in a script. If you are familiar with other languages it's basically a function. It takes parametres (but doesnt have to) and returns a value but again doesnt have to.

A script is a bunch of procedures and other code written together to do a specific task. It can have procedures etc.

An expression is typically done on one or more "channels" in maya. E.g. pCube1.tx += 1; in the tx channel will move the cube on a frame by frame basis along the x axis.

Hope that helps a bit
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Old 21-06-2004, 10:20 AM   #4
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Old 21-06-2004, 12:45 PM   #5
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wow there's some really useful comments on the board today
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Old 21-06-2004, 02:33 PM   #6
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In some languages procedures are sub-programs which do not return a value and functions are sub-programs which do return a value. In MEL all sub-programs are called procedures. They can be local or global.
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Old 21-06-2004, 03:40 PM   #7
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Thanks!
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