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Activity Forums Adobe After Effects Expressions Perspective problem…

  • Perspective problem…

    Posted by David Mickolas on March 7, 2006 at 4:23 pm

    I am in the middle of making a spot for a paving stone company. They want to end on a shot of a house with a brick pathway leading towards the camera. The front of the spot is a CU on these bricks, straight on. To get from one shot to the other, I need to move my camera from the straight-on shot of the bricks to the final photograph of the winding pathway and the house. I have the last shot of the house, and the head-on shot of the bricks as 2 seperate elements and have tried multiple ways to move from the head-on shot of the bricks to the final shot of the house without any perspective shift. Anyone out there ever encounter a problem like this? I’m not sure what the best way to solve this is… little help?

    David Mickolas replied 20 years, 2 months ago 3 Members · 3 Replies
  • 3 Replies
  • Mike Smith

    March 7, 2006 at 4:59 pm

    One way might be to set the house shot in 3d for an end view. If the footage allows, lay out the 3d bricks shot as a perspective / floor layer, so that the two shots work together, masking or distorting as needed to get it to work. That’s your end shot. Then rotate the floor lay up, so that it’s face to camera and filling your frame. That’s the start frame …. hmm. Might work!

  • Filip Vandueren

    March 7, 2006 at 5:18 pm

    You can use Photoshop’s Crop tool to ‘unperspective’ your shot of the winding pathway.
    So it becomes a top-down view.

    Then composite your perfect CU-shot into that, and then try Mike’s suggestion by using the result as your floor, with the house set up in the distance.

  • David Mickolas

    March 7, 2006 at 5:19 pm

    The problem is getting the 2 layers to work in tandem without any noticable perspective distortion. I am sure it can be solved with expressions and nulls, but not quite sure of how to go about it.

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