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Activity Forums Adobe After Effects Shadow Problem with Stroke Effect

  • Shadow Problem with Stroke Effect

    Posted by Craig Service on November 8, 2008 at 12:31 am

    I am using the Stroke effect in CS3 with the paint style set to “reveal original image” to mask and then reveal parts of a logo. The effect work great but when I take it into 3D and add a light the revealed part of the logo casts a shadow (good) as well as the masked part of the logo (not good). I would like the corresponding shadow to reveal as parts of the logo reveal when animating the Stroke effect.
    Does anyone know of a solution?
    Thanks,
    Craig

    Michael Szalapski replied 10 years, 2 months ago 4 Members · 6 Replies
  • 6 Replies
  • Eric Steinberg

    November 8, 2008 at 2:57 pm

    Sounds like you could precompose the logo-reveal, then bring that precomp into your 3D comp, meke it 3D and have it cast shadows. Should only show shadows of the revealed part.

    Kind regards,
    Eric

  • Craig Service

    November 10, 2008 at 4:51 pm

    Thanks Eric! That worked beautifully and it also solved the problem of the mask affecting other areas when I scale the object.
    Craig

  • Andreas Woelfl

    March 1, 2016 at 10:18 am

    Hello there ( and 8 years later :),

    I have no Idea if this post will be red but I have the same problem with the stroke effect.

    IDEA:
    I am trying to reveal a shape layer using the stroke effect. The element is supposed to generate a drop shadow (cast by a light).

    PROBLEM:
    Even the layer isn’t revealed by the stroke effect, it casts already a shadow.
    After putting it into a precomp and setting the precomp to 3D the problem is resolved, BUT …

    … the problem now is that I do not get the full resolution of the shape layer when moving it towards the camera (because of the precomp).
    This problem could be solved by clicking the sun icon (beside the shy guy) but also means that I get the shadow problem again.

    Anybody has an idea how to work around that? I need the resolution of the shape layer and only cast shadow where the stroke effect reveals the layer.

    Thanks for your help!

  • Michael Szalapski

    March 1, 2016 at 7:41 pm

    Precompose.

    – 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.

  • Andreas Woelfl

    March 2, 2016 at 9:03 am

    The problem with the precomp (which I already did) is that I do not get the resolution of the precomp and not of the shape layer, which is not really good when I move the comp close to the camera.

    Any other ideas how to get the shape layers resolution and still get the stroke effect right?

  • Michael Szalapski

    March 2, 2016 at 2:12 pm

    Make the precomp a lot larger and scale its contents. (There’s a scale composition script that comes with AE that could make this really easy.)

    – 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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