6 Replies Latest reply on Jul 25, 2012 12:33 PM by Navarro Parker

    Keylighting Difficulties


      Okay, I know how to use Keylight. I have been here before troubleshooting Andrew Kramer's Lightsaber preset. I have solved how to use his effect.


      Now, my problem is getting keylight to completely make my green screen disappear. I tried everything and the results were not good. I don't know if I'm doing anything right or what?

      Please don't ask me any questions in the context that you are helping by wanting me to do everything. (Believe me, I tried everything.)


      I would like to upload my video privately to one of you who already knows about Keylighting. Would any of you be willing to do my Keylight for me? I just want my background completely transparent.



        • 1. Re: Keylighting Difficulties
          Rick Gerard Adobe Community Professional & MVP

          Have you tried garbage mattes? Have you tried multiple instances of Keylight? All we need to see is one frame. Just grab a screenshot of your project WO effects.


          It's reasonable for us to ask more about your footage. DV footage is very difficult to key and requires very different techniques than HD lossless 10 bit footage. Post a frame, one where you're having difficulty, tell us about the footage, and we can help.


          BTW, you haven't tried everything until you've found the solution.

          • 2. Re: Keylighting Difficulties
            Mylenium Most Valuable Participant

            As Rick said, provide screenshots of the footage and the keyer settings. I tend to agree - sounds like the classical "I was too lazy to draw a garbage mask" and the screen is not uniformely lit to give the proper result just with the keyer...



            • 3. Re: Keylighting Difficulties
              Thunderwulf35 Level 1

              @Rick: "sounds like the classical "I was too lazy to draw a garbage mask." Really?

              I don't even know garbage matte just yet. I'm still new. You're right about the lighting. It's frustrating of the lighting I have.


              @Chris: Sounds good. I'll upload it here in the morning. 

              • 4. Re: Keylighting Difficulties
                Navarro Parker Level 3

                Have you tried Premiere Pro's Ultra keyer? It's pretty remarkable at keying poorly lit shots. And it's far less fiddly than Keylight.


                I've been really impressed at the speed and quality of it (esp on supported GPUs). It is an order of magnitude faster than Keylight.


                Key your footage in Premiere, then use Dynamic Link to pull your PremPro project into AE. Then do your color correction, light wraps, and all the fancy stuff in AE.

                • 5. Re: Keylighting Difficulties
                  Dave LaRonde Level 6

                  I've never mesed with Ultra.  Does it work with animated garbage mattes if you need to use them?

                  • 6. Re: Keylighting Difficulties
                    Navarro Parker Level 3

                    Yes, but PPro's garbage mattes are on par with Final Cut 7 – basic and servicable. You have animatable 4-point, 8-point, and 16-point polygon mattes. Nothing elegant like AE's bezier masks.