• Adobe After Effects Expressions

  Issues with SourceRectAtTime not match the height of my text

  Posted by Emma Beinish on February 26, 2024 at 2:46 pm

  Hi everyone,

  I’m issues with my shape layer not matching the height of my text. I’m using the paragraph text mode.
  Here’s the expression I’m using for the shape layer size:

  textWidth=thisComp.layer(“Saturday Night Live host, Timothée Chalamet, rode away with the show on his beloved tiny horse”).sourceRectAtTime().width;

  textHeight=thisComp.layer(“Saturday Night Live host, Timothée Chalamet, rode away with the show on his beloved tiny horse”).sourceRectAtTime().height;

  [490.2, textHeight]

  I’ll also attach some screenshots with other additional expressions I’ve used.

  Thank you 🙏

  

  

  

  

  Andrei Popa replied 2 years, 7 months ago 3 Members · 2 Replies
• 2 Replies

• 

  Tom Morton

  February 28, 2024 at 7:14 am

  Can’t see an obvious problem with your script. Personally I would rename the text layers to something short and simple to help keep your code clean.

  If the sourceRectattime() functions aren’t returning the right answer, you’re probably using a text box, don’t think it works on these, it has to be free form text – open the text type tool, and don’t click and drag to make a box, just click anywhere instead.
• 

  Andrei Popa

  February 28, 2024 at 7:45 am

  You need to add parameters to the function like this:

  textWidth=thisComp.layer(“Saturday Night Live host, Timothée Chalamet, rode away with the show on his beloved tiny horse”).sourceRectAtTime(time, false).width;

  Also, sourceRectAtTime does not count for scale, so your final expression may look like this

  textWidth=thisComp.layer(“Saturday Night Live host, Timothée Chalamet, rode away with the show on his beloved tiny horse”).sourceRectAtTime(time, false).width * scale[0] * 0.01;

  textHeight=thisComp.layer(“Saturday Night Live host, Timothée Chalamet, rode away with the show on his beloved tiny horse”).sourceRectAtTime(<i style=”font-family: inherit; font-size: inherit; color: var(–bb-body-text-color);”>time, false<i style=”background-color: var(–bb-content-background-color); font-family: inherit; font-size: inherit; color: var(–bb-body-text-color);”>).height <i style=”font-family: inherit; font-size: inherit; color: var(–bb-body-text-color);”>* scale[1] * 0.01<i style=”font-family: inherit; font-size: inherit; color: var(–bb-body-text-color); background-color: var(–bb-content-background-color);”>;

  [490.2, textHeight]

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