10 Replies Latest reply: Dec 19, 2013 1:33 PM by Mika_T_82 RSS

    Comp renders as black screen, all standard settings

    dirt_ Community Member

      My AE comp renders as a full-length video of a black screen (with audio, when enabled). Comp plays fine in RAM preview, and I've tried all types of codecs and disabling RAM intensive effects, though I'm working on a quad-core i7 macbook pro with 8 gigs of RAM, so that shouldn't be a problem. Have followed tutorials to a T, and haven't found any help elsewhere online. Standard 1080p hd output. Please help!

        • 1. Re: Comp renders as black screen, all standard settings
          Rick Gerard CommunityMVP

          What standard output?  Lossless? Animation Codec? H.264 .... We need to know more about your render settings.

          • 2. Re: Comp renders as black screen, all standard settings
            dirt_ Community Member

            Thanks for the reply. I've tried the Lossless output module with Animation codec, MPEG-4 and some others. I've also tried the H.264 module and a few others, always with the same result. While rendering, the video won't even play in the composition window (I've heard that it does this, unless you have capslock enabled), it just turns into a black screen, and renders as such. Appreciate the help!

            • 3. Re: Comp renders as black screen, all standard settings
              Rick Gerard CommunityMVP

              Do you have any 3rd party codec pacs installed. Try rendering a few frames as a jpg sequence or rendering just a single frame as a Photoshop file.

              • 4. Re: Comp renders as black screen, all standard settings
                dirt_ Community Member

                No 3rd party codecs, and I rendered the entire thing as a jpg series and got about a thousand black squares. I'm new to the program, using it on a new computer, so I'm essentially using the program and render settings straight out of the box.

                • 5. Re: Comp renders as black screen, all standard settings
                  Mylenium CommunityMVP

                  Assuming you are on CS6, set the comp viewer to final quality, turning off Fast previews. Furthermore, turn off the disk cache and check your graphics options. I suspect you have an issue there. Also monitor your rendering in Activity Monitor and verify, that actually there is processing activity and the auxiliary processes like the qtserver and dynamiclinkserver are active...

                   

                  Mylenium

                  • 6. Re: Comp renders as black screen, all standard settings
                    dirt_ Community Member

                    Using CS6. Tried all of the above, still no luck. Activity monitor reads loud and clear that the computer is working hard on *something* the entire time, and those two auxiliary processes are active. What would there be to check on graphics options? (Thanks)

                    • 7. Re: Comp renders as black screen, all standard settings
                      Mylenium CommunityMVP

                      Just guessing around, honestly. Regarding Fast Previews it could be an issue with footage decoding. That old thing with front-/back buffers (on-screen/ off-screen buffers) where hardware accelerated stuff will show up when drawing it on screen, but not if the buffer is rendered void during final rendering. I would still suspect that some of that is involved, possibly even a similar thing in Quicktime or anotehr system library, but as a non-Mac person my knowledge on current versions is limited in that area.

                       

                      Mylenium

                      • 8. Re: Comp renders as black screen, all standard settings
                        Todd_Kopriva Adobe Employee

                        Try an extremely simple test composition without any footage. Follow the instructions here and report back.

                         

                        Also, we need more details if we're going to help you. Please provide answers to the questions listed here: "FAQ: What information should I provide when asking a question on this forum?"

                        • 9. Re: Comp renders as black screen, all standard settings
                          dirt_ Community Member

                          The basic test worked, and now I finally got it working by rebuilding the entire comp from the ground up, starting with just the jpg, then copy-pasting masks, effects, and so on, checking to make sure it was rendering correctly each step of the way. Still a complete mystery to me why it wasn't working in the first place, so I included all my info in case anyone has any clue what was going on. But the problem is solved (at least, the render is about halfway through now and, from the looks of it, it is actually processing the video this time), so thanks everyone very much for your help

                           

                           

                          • What version of After Effects? CS6, version 11.0.2.11

                           

                           

                          • What operating system? OSX 10.8.2

                           

                          • What kind(s) of source footage? A still .jpg

                           

                          • If you are getting error message(s), what is the full text of the error message(s)? No errors reported

                           

                          • What were you doing when the problem occurred? Rendering the composition

                           

                          • Has this ever worked before? Only with the basic video example I just tried

                           

                          • What other software are you running? None concurrently with rendering

                           

                          • Do you have any third-party effects or codecs installed? Nope

                           

                          • Tell us about your computer hardware. Include CPU type and number of processor cores, amount of RAM installed, GPU, number of disk drives, and how any external drives are connected.

                           

                          Latest-generation macbook pro, Quad-core 2.6 GHz i7 processor, 8 gigs ram, 750 gig hard drive (non solid state, not even a quarter full), minimal stock NVIDIA graphics card with 1 gig ram

                           

                          • Do you have any third-party I/O hardware (e.g., AJA, Matrox, Blackmagic, MOTU)? No

                           

                           

                          • Does the problem only happen with your final output, RAM preview, or both? Only with final output

                           

                           

                          • What is the exact sequence of steps that you are taking?

                           

                          I have now tried the following:

                           

                          I created a new comp, web size, with just the original jpg, rendered fine

                          I created a new comp, HD size as in my original project, with just the original jpg, rendered fine

                          I copy-pasted all masks I used in the original onto the new version, renders fine

                          Copy-pasted effects, works fine

                          Now have completely rebuilt my project, will look closely to see if I can find any difference at all between the two projects now.

                          • 10. Re: Comp renders as black screen, all standard settings
                            Mika_T_82 Community Member

                            I had a similar problem with my AE CS6 with text layers. I tried to render the video but I only got black screen. I noticed that I had somehow my text layers checked as "guide layer". So I un-checked them and the render worked out well.