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Activity Forums Adobe After Effects Using 3d Stroke on keyed footage

  • Using 3d Stroke on keyed footage

    Posted by Jonathan Marck on June 6, 2014 at 4:10 pm

    Hi, I’m still new to Trapcode’s 3D stroke and I’m trying to use it on keyed footage such as the screen capture below. How can I make 3D stroke path along the orange?

    Jonathan Marck replied 12 years, 2 months ago 2 Members · 10 Replies
  • 10 Replies
  • Michael Szalapski

    June 6, 2014 at 5:26 pm

    What are you trying to accomplish? Do you want the 3d Stroke lines to follow the orange exactly or are you wanting it to twirl around it?

    – The Great Szalam
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  • Jonathan Marck

    June 6, 2014 at 5:42 pm

    I’d like it to follow the orange lines exactly. Really I’d like every bit of orange to be replaced by the stroke.

  • Michael Szalapski

    June 6, 2014 at 5:54 pm

    Draw four different masks of straight lines with the mask tool on top of the orange lines.
    Apply 3d Stroke.
    Done.

    Alternatively, draw one straight line with the mask tool.
    Apply 3d Stroke.
    Enable the repeater.
    Turn off the Symmetric Doubler option
    Change the Z offset to 0 and the Y offset to whatever amount you need for them to line up
    Change the number of instances to 4.

    – The Great Szalam
    (The ‘Great’ stands for ‘Not So Great, in fact, Extremely Humble’)

    No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.

  • Jonathan Marck

    June 6, 2014 at 6:10 pm

    Thanks but that’s what I’m trying to avoid. This is a 4 minute sequences with many shots and lots of movement.

  • Michael Szalapski

    June 6, 2014 at 6:25 pm

    I’m confused. Are you hoping that 3d Stroke will be able to detect the alpha of a layer and add itself to the middle of it somehow (and at the right width? So, are you basically wanting 3d Stroke to add depth to a graphical element?

    If not, I’ve no idea what you are asking for.

    – The Great Szalam
    (The ‘Great’ stands for ‘Not So Great, in fact, Extremely Humble’)

    No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.

  • Jonathan Marck

    June 6, 2014 at 6:31 pm

    That would be nice. Really I’m looking for a way to create mask paths based on alpha (or hue, or whatever) that I can then apply 3D stroke to.

  • Michael Szalapski

    June 6, 2014 at 6:44 pm

    Auto Trace [link] is the only built-in thing I know of.

    – The Great Szalam
    (The ‘Great’ stands for ‘Not So Great, in fact, Extremely Humble’)

    No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.

  • Jonathan Marck

    June 6, 2014 at 6:57 pm

    Nice! I’ll give it a shot!

  • Jonathan Marck

    June 6, 2014 at 10:40 pm

    It works great! Thanks!

  • Michael Szalapski

    June 7, 2014 at 3:29 pm

    Hoorah! Glad to help. 🙂

    – The Great Szalam
    (The ‘Great’ stands for ‘Not So Great, in fact, Extremely Humble’)

    No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.

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