• Adobe After Effects Expressions

  Simple Expression help..

  Posted by Fernando Gutierrez on October 3, 2008 at 4:33 am

  Well… Let’s simplify the explanation…

  I have a Circle flying on 3d space… coming and going on both 3 axis…
  I got a Trapcode Particular Emitter parented to my Circle:

  Position XY
  x=thisComp.layer(“circle”).transform.position[0];
  y=thisComp.layer(“circle”).transform.position[1];
  [x,y]

  Position Z
  thisComp.layer(“circle”).transform.position[2]

  Well.. working like a charm.. BUT…
  I parented this circle to a Null to do some nice rotation and other stuff… Well… when i did it, the value os Position changed… of course… it was parented…
  Question… HOW CAN I DO THAT? I need to parent it to the null.. BUT I need the emitter of particular not to go that far away… stick with circle…

  Thanks

  Fernando Gutierrez replied 17 years, 7 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  October 3, 2008 at 4:56 am

  I haven’t tested these, but something like this should do it:

  //Position XY
  L = thisComp.layer(“circle”);
  P = L.toWorld(L.transform.anchorPoint);
  [P[0],P[1]]

  //Position Z
  L = thisComp.layer(“circle”);
  L.toWorld(L.transform.anchorPoint)[2];

  Dan
• 

  Fernando Gutierrez

  October 3, 2008 at 7:24 pm

  Oh Yeah!…

  Works just as i wish….

  Thanks man….

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