4 Replies Latest reply on Jun 23, 2009 6:09 PM by studio_3D

    3D tumble not really 3D

    studio_3D Level 1

      Just learning AE, I do stereoscopic imaging so the z axis is a huge deal for me! BUT I applied a Movement Transition to a layer- the "3D Tumble" effect, but it looks to be NOT 3D at all, some kind of simulation whose z-space remains unchanged. Is this a holdover from previous non-3D versions? Are there any 3D effects which ARE 3D? THANK YOU!


      ron labbe

        • 1. Re: 3D tumble not really 3D
          Adolfo Rozenfeld Adobe Employee

          Hello, Ron.

          3D tumble is not an effect but an animation preset, this is, a pre-made animation block made by combining different features and effects.

          But, yes, 3D tumble makes use of "Basic 3D", which is a legacy (pre AE 5.0) effect that precedes the introduction of 3D compositing in After Effects.


          When you enable the 3D switch for a layer, all the native transform properties (scale, rotation, position, etc) become 3D, and those layers are composited according to their coordinates, not their stacking order in the timeline. You also get the ability to use cameras (including Depth of Field simulation) and lights (with shadows, projections, specular highlights, etc)

          Here's the 3D switch in the timeline:




          Now, some people use the term 3D for "extrusions" and other volume-generating prodedures. It could be a long discussion. But AE doesn't directly produce extrusions. Some people call this 2.5D, because you have 2D layers distributed and orientated in 3D space. A lot of people combine multiple 3D layers to do complex 3D hierarchies. AE honors intersections, junctures, etc.


          I recommend you take a look at the After Effects Help chapter on 3D layers

          1 person found this helpful
          • 2. Re: 3D tumble not really 3D
            studio_3D Level 1

            Thanks, Adolfo...


            I was hoping the 3D tumble actually moved the layer in 3D space, which I can do manually (I did know about the 3D switch). I think now that a z-axis has been added, it's confusing to call an effect 3D when it's not 3D at all, just looks like 3D! Either they should implement some real 3D layer effects and/or stop calling them 3D... I know AE doesn't do modelling/extrusions but there's no reason the effects can't occur in 3D space (is there?)


            I will read the 3D layers Help chapter as well.



            ron labbe

            • 3. Re: 3D tumble not really 3D
              Adolfo Rozenfeld Adobe Employee

              Ron: Making these effects 3D, so that they interact in 3D space with other 3D operations would make a very nice feature request.

              You can file it here

              • 4. Re: 3D tumble not really 3D
                studio_3D Level 1

                Good idea!

                I will definitely do that, thanks again.