6 Replies Latest reply on Oct 3, 2008 8:51 PM by (John_Faris)

    3D Photo Montage Question

      I am very new to After Effects and I have an issue with a project I have started. I am doing a 3D Photo Montage where the photos seem to hang in space as the camera moves in and out on them as well as around them to additional layers of photos. I actually watched a tutorial on how this is done, otherwise it would be beyond my present capabilities.

      In short, I am able to do everything fine except for getting an acceptable output. The in and out movement is smooth, but any movement across the photos is choppy as if it is the wrong frame rate. I have tried many different rendering options yet am unable to get the final output to look smooth. I am using AE 7.0 and am outputting to 4.3 NTSC video. Any suggestions would be greatly appreciated.
        • 1. Re: 3D Photo Montage Question
          Andrew Yoole MVP & Adobe Community Professional
          What are your output settings? How are you viewing the finished render, and what is your actual target destination format (such as web, DVD etc)?

          Fast horizontal movement tends to look awful in progressive/non-interlaced formats. If you are outputting to a video format like DVD, make sure you are rendering fields, and make sure you are rendering the correct field order for your output format.
          • 2. Re: 3D Photo Montage Question
            Mylenium Most Valuable Participant
            Yepp, as Andrew said - fields, fields, fields. The lame bane of all TV output... ;-) Also, when moving across the photos, use subtle curves rather than travelling in perfectly straight lines. The slight detour will affect the sampling and thus the perception of any possible shutter issues - the movement perpendicular to the direction of travel will distract from the main motion.

            • 3. Re: 3D Photo Montage Question
              Level 1
              Thank you for the advice. I am rendering fields or at least I believe I am. As I posted, AE is completely new to me and there seems to be a lot of ways to output the project. I have tried using templates from the render and output modules as well just exporting a movie using quick time with various codecs. All produce a shutter effect to some degree when panning horizontally. AVI files seem to render horribly from AE.

              Crazy thing is that zoom in and out movements as well as some horizontal with zoom movement look beautiful. Only a horizontal pan is affected. It looks better when the camera is back further showing a wider view of the photo. Ultimately this is what I did along with some subtle curves as Mylenium suggested and the result was not perfect but acceptable.

              The client loves the end result and I guess thats all that matters. Now that I have opened "Pandoras Box" and have done my first project in AE I will be devoting more time to becoming more proficient. I have owned various versions of AE from as far back as 4.0 but never got past opening the program. With so many other day to day tasks to tend to the learning curve always seemed to great. I now see it is worth the time and effort and am excited to learn more. Thanks again!
              • 4. Re: 3D Photo Montage Question
                Jonas Hummelstrand Level 2
                Rule #1: Never, ever use "Export..." for things that can be done with the Render Queue. We keep begging Adobe to remove the "Export..." menu.

                - Jonas Hummelstrand
                • 5. Re: 3D Photo Montage Question
                  Level 1
                  Jitters can easily be caused by the interaction of frame rate with movement. This produces a stroboscopic effect that can only be removed by blur or changing the speed. Anyone that's shot with a 35mm film camera has run into critical panning speeds. These are speeds that you just can't use and the speed is different for each focal length, shutter angle, and frame rate.

                  Motion Graphics artists should be keenly aware of this phenomenon and design around the limitations. Critical panning speeds are more pronounced, IOW, the jitters are more obvious at 24 fps than at 30I. HD, especially 24P hd is especially hard to shoot and 24P hd motion graphic projects are much more difficult than SD 30i projects ever were.
                  • 6. Re: 3D Photo Montage Question
                    Level 1
                    Thanks for the advice. I will do some experimenting with critical panning speeds. I will also stop using using export. Is it just because export gives you less options than the render queue?

                    I have purchased the classroom in a book series to work through the lessons and start from the beginning. In just the first three chapters I picked up some hints that would have saved me a lot of time on the project I was working on. I guess reading the manuals aren't such a bad thing.:)