Per Particle Attributes

After I uploaded emitter tutorial, I needed to define what "Per Particle (array) Attribute" is.

• Per Particle Attribute allows each particle to store its own value for a given attribute. That is why most expressions are applied to Per Particle Attributes. Per Particle Attribute can control each particles in object so that it can create complicated and variable particle effects. However, Per Particle Attribute cannot be keyframed, be used with other expression and it should be used only in particle expression.

• Some attributes has PP at the end their names. PP means Per Particle so it can be easily distinguished, but remember there are other Per Particle attributes like Position and Velocity which doesn't have PP at the end.

Reference

• Jo Sang Bum., 2002. programming with MAYA MEL & Expression. Seoul: Ahn Dae Sik

• Autodesk Maya 2011, 2010. Autodesk Maya Online Help : Introduction. [online] Available at : < file:///Applications/Autodesk/maya2011/docs/Maya2011/en_US/index.html?url=./files/GS_Introduction.htm,topicNumber=d0e1838 > [Accessed 25 February 2011].

• Marc-André Guindon., 2005. Learning Maya 7 : The Special Effects Handbook. Unknown: Sybex