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Activity Forums Adobe After Effects Effective Camera Value

  • Effective Camera Value

    Posted by Praveen Nu on February 17, 2010 at 5:53 am

    I have an AE project in which camera is parented to a NULL and both Camera and NULL are key-framed. Is there anyway to calculate the effective camera value or is there anyway to recreate the same camera movement but without a NULL.

    Thanks

    Michael Szalapski replied 16 years, 2 months ago 3 Members · 3 Replies
  • 3 Replies
  • Walter Soyka

    February 17, 2010 at 2:28 pm

    Here’s a script for baking AE camera data.

    Walter Soyka
    Principal & Designer at Keen Live
    Motion Graphics, Widescreen Events, Presentation Design, and Consulting
    RenderBreak Blog – What I’m thinking when my workstation’s thinking
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  • Michael Szalapski

    February 17, 2010 at 8:05 pm

    Nice script!
    Just for an alternate take, you can also reference a parented layer’s actual place in AE’s world with expressions.
    Parent a null object to the camera’s null and then change its position to match the camera’s position. (This places it exactly where the camera is.) Now parent the new null to the camera. Now it will be exactly where the camera is at all times. (Title it something like CamTrack_NULL.)

    Then, if you want something to reference the camera’s actual position in AE’s world, put this in:

    L=thisComp.layer("CamTrack_NULL");
    L.toWorld(L.anchorPoint);

    – 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.

  • Michael Szalapski

    February 17, 2010 at 8:06 pm

    I forgot to mention that there might be a way to directly reference the camera, but I don’t know if off the top of my head and my brain’s a bit fried today.

    – 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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