VFX & Film Making Edutainment

Adobe After Effects 3D Projection VFX

Pre-Composing The Rooms

To get rid of the ugly double projection problem, we need to pre-compose the two rooms independently. Because the compositions for both rooms will contain some 3D elements (the walls, light and projection layer) and all 3D elements depend on a camera for correct positioning, we first need to duplicate the Camera and the Camera Null object. Ensure the copy of the camera is parented to the copy of the null object.

Select all layers we set up for room one, the connecting piece between the rooms, the copy of the camera and the copy of the Camera Null object and pre-compose them.

Call the composition ‘Room 1’.

Duplicate the camera and the Camera Null object one more time and ensure the copy of the camera is parented to the copied Camera Null layer.
Select all layers except for the ‘Room 2’ composition and pre-compose them. Call this comp ‘Room 2’.

Our final composition should have two nested compositions in it, Room 1 and Room 2, as well as a camera and the Camera Null layer as well as the concrete connecting piece between the rooms.

Playing through our animation, you will likely encounter some strange overlapping visual elements between the two rooms. Most of them will be caused by the fact that the 2 compositions we created for the rooms are flat layers and their 3D layers don’t know anything about each other and therefore won’t properly obscure each other.

This however, can be easily fixed by adding an animated mask to the room that sits on top and removing the overlapping artefacts. You may also have to tweak the connecting concrete piece a little bit to clean up the connection point :)

And with that you should be done with your complex – but very awesome – 3D transition effect!

I hope you enjoyed this tutorial and find lots of useful applications for this effect (or any variants of it) for your own projects :)

8 comments for Adobe After Effects 3D Projection VFX

  1. Hi,
    we want to hire you in our 3d Holographic projection.
    You will give us our boss 3d effect & that will live simultaneously 300 places by 3d holographic projection.
    Immediate.
    Kindly reply me.

  2. lov it

  3. Well done, here’s a tutorial on how to achieve this with extruded 3D shapes:
    https://vimeo.com/87376234

  4. I’ve tried this and its not working. I create all the setup and when I get the grid effect, the solids stay white and don’t recieve any shadows from the original image. I’ve tweaked every posible parameter and those layers either disappear or keep being white. When I make them accept shadows only the just dissapear.

    I even made it all again from scratch keeping up with every instruction in the tutorial and doesn’t work.

    Any tips?

    • Hm, I know a couple of people had the issue. They usually resolved it by ensuring that the light transmission properties were set up correctly, but it’s hard to tell what might be wrong given there are so many settings involved.

    • I just tried this yesterday and had the same problem. So I did it again from scratch and the same thing. However I was able to correct it by double checking the position of my “Scene” layer and was able to correct the floor and ceiling to work properly. Then I had a white feather stripe that took up a 3rd of my screen and was able to correct that by going into my “Light” layer and changing the Falloff to none and solved it. I know I’m a little late in replying but I’m just happy I figured it out.

  5. I’ve tried all the setup except for the Grid that refuse to expand beyond up and down… No dept was possible for me. What’s the reason for this?
    The the xy is not working in my case.

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