• Adobe After Effects Expressions

  One expression to preview Particular?

  Posted by Greg Neumayer on October 7, 2011 at 6:43 pm

  I’d like to link my motion preview setting of Particular to an expression, so I can toggle the many instances of Particular between preview and full render. Can I do this with an expression? The Render Mode setting allows me to turn on expressions, but I’m not sure how to write/pic-whip it so that I can give it a value from somewhere else, since it’s a pulldown box with two options, “Motion Preview” and “Full Render”. Can I plug in “Motion Preview” from another expression?

  Thanks,
  -Greg

  Antifreeze Design
  https://www.antifreezedesign.com

  Dan Ebberts replied 14 years, 10 months ago 2 Members · 3 Replies
• 3 Replies

• 

  Dan Ebberts

  October 7, 2011 at 8:10 pm

  You could link the Render Mode parameters to a Checkbox Control with an expressions like this:

  thisComp.layer(“controls”).effect(“Checkbox Control”)(“Checkbox”).value + 1

  When the Checkbox is unchecked, you get Motion Preview, when it’s checked you get Full Render.

  Dan
• 

  Greg Neumayer

  October 10, 2011 at 6:40 pm

  Thanks Dan. That works perfectly.

  Am I correct in understanding that it works because the Checkbox control is submitting a (non-strict) Boolean as 0 or 1, and the Particular Render Mode pulldown is looking for a value of either 1 or 2? (It seems odd that AE pulldown menus wouldn’t also be zero-based arrays.)

  Antifreeze Design
  https://www.antifreezedesign.com
• 

  Dan Ebberts

  October 10, 2011 at 6:50 pm

  Yes, that’s correct.

  Dan

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