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Forums Adobe After Effects How to bend a 3D object, or wrap image around a curved screen?

  • How to bend a 3D object, or wrap image around a curved screen?

  • Brian Covalt

    June 17, 2021 at 4:02 am

    I’ve got a render of a city scene with a large digital screen that is flat along the side of a wall, then bends around the corner, and then continues down the other side of the wall (after a 90-degree turn if you will).

    I need to comp some footage into that digital screen. I’ve successfully created a 3D Tracker Camera and have a solid that fits nicely along one side of this big screen, but I am trying to figure out how to get this 3D solid to wrap around to the other side?
    So I’d need it to be flat along the south side of the wall, then bend around the corner, and then lay flat again along the east side of the wall; hopefully all in one long solid or precomp so that I can then lay my footage into it and have it displayed in this screen.
    Any idea how I’d get that image to bend in 3D?

  • Brendon Murphy

    June 17, 2021 at 12:21 pm

    Definitely use a precomp that’s the correct height and width to wrap around both sides of the building (might take trial and error to get the size right). When you get to the corner, mask out the part that’s hanging off and then move your layer’s anchor point to the corner. Then you can add the other half by duplicating the precomp, subtracting the mask, and rotating the layer on Y.

    So on the building you’ll have two instances of the same precomp.

  • Eric Santiago

    June 17, 2021 at 1:14 pm

    Does it really bend with a chamfered edge on the corner of the building or just a straight 90degree edge?

    The straight edge would be easier to deal with.

  • Brian Covalt

    June 17, 2021 at 7:54 pm

    It needs to wrap though, not have a hard edge between the west and east side.
    Here’s a screenshot of the large screen I need to fill with video..

    It’s the wrap that’s got me puzzled on how to solve.

  • Brian Covalt

    June 17, 2021 at 7:55 pm

    Straight edge would be nice, but it needs to wrap around.

  • Kolin James

    June 17, 2021 at 8:06 pm

    It think your only option is to build it in a 3d program. Built in C4d should be fine. Create some solids based on corners and edges to bring into cinema.

  • Eric Santiago

    June 17, 2021 at 11:05 pm

    The flat side (left) will be easy and the right side (not sure what the shape) should be as well.

    You just need two sets of planar trackers to follow each side.

    Then your preComp can be shared to each side.

    Agreed with the 3D app option.

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