7 Replies Latest reply on Jan 21, 2012 4:09 PM by andreaed1

    Video layer on a 3D object

    andreaed1

      I have creative suite 5.5 ext.

       

      How would I put a video on a layer of a 3d object (3ds file) in after effects and then move around it with the camera?

       

      For example, I have a 3d model of a flat screen tv that i can import into photoshop and save as a psd. I would like to import that 3d model into after effects and then have a video that I created in premier showing on that TV's screen layer as I move the after effects 3d camera toward and around the flat screen tv while the video plays. How do I size that video to fit perfectly on the 3D objects front screen? I think I have all the pieces, I just don't know how to put them all together

       

      Thank you for any help.

        • 1. Re: Video layer on a 3D object
          Mylenium Most Valuable Participant

          How would I put a video on a layer of a 3d object (3ds file

           

          You don't. It's as simple as that. You're operating on completely wrong assumptions. AE has no access to the 3D data at all. It's the same limitation as with any 3D-ish effect in AE - they can only respond to the camera and to some degree 3D lights, but you cannot chnage textures or any of that on sa PS Live 3D file. Therefore your options very much only extend to placing your video as a 3D layer and matching the alignment or uinsg distortion effects like Corner Pin to pin the video to the layer as you would with conventional tracking. Another method is presented by using UV pass information, which is demonstrated here and explained here, but it requires you to use plug-ins and understand the workflow.

           

          Mylenium

          • 2. Re: Video layer on a 3D object
            Rick Gerard Adobe Community Professional & MVP

            Unless you have full access to a 3D app supports exporting camera data to AE you're not going to have very much luck attaching video to your 3D TV if it's moving very much. If it's nearly static you can use corner pinning, scale and mask a 3D layer, of track the screen in Mocha and use the Mocha to AE tools to make it work well. The move you are describing is almost impossible without 3D camera info from the 3D app.

             

            Any really big moves will work much better if you map the video to the TV in the 3D app. It's loads easier to setup. I've never tried texture mapping video to a 3D object in Photoshop and I don't know if that's even possible. Maybe someone else could chime in.

            • 3. Re: Video layer on a 3D object
              andreaed1 Level 1

              Thank you both for those comments. I understand a little bit more now that what I ask isn't really that easy. I see that effect everywhere so I thought it was moderately easy to do with after effects.

               

              Rather than approaching it from the questions above, can we do a specific example below? I think a graphic will better illustrate to you what I am trying to do.

               

              Below I have a flat screen 3D TV composition from Photoshop. On the face of the TV you see a video that I am trying to show on the screen of that TV.

               

              How do I line up the corners of the video and also make that video play on the front of the TV? The TV will stay in one position and I will pan a after effects camera around the front of it and towards it as I learn more about how to do this.

               

              Thank you both again for your help.

               

              tvexample.JPG

              • 4. Re: Video layer on a 3D object
                Rick Gerard Adobe Community Professional & MVP

                If the TV is relatively stable, that is to say, isn't moving around a lot, the easiest way would be to apply Effects>Perspective>Corner Pin to the video layer.

                 

                There are lots of options, but get started with Corner Pin and a TV that's not moving.

                 

                If the TV is moving around a bunch you'll have to learn about motion tracking and pre-composing.

                • 5. Re: Video layer on a 3D object
                  andreaed1 Level 1

                  Thank you so much Rick. But when I go to effect>perspective, there is no corner pin option. Is that a separate plug-in for purchase?

                  • 6. Re: Video layer on a 3D object
                    Rick Gerard Adobe Community Professional & MVP

                    My mistake. Try looking under the distort category. You could also just search for corner pin in the effects and presets panel.

                    • 7. Re: Video layer on a 3D object
                      andreaed1 Level 1

                      That really helped me a lot Rick - thank you!