8 Replies Latest reply on May 22, 2016 10:16 AM by Mrwipg

    How to build a flare with a transparent background

    Mrwipg

      So I recently built a lens flare on a black background of a solid layer. It has many layers all parented and pick whipped to the lens flare layer. It pulses, changes opacities and positions,  it does all sort of really cool stuff. I have one major issue it is locked into the solid composition creating it to be a rectangular shape when imported into any composition. This rears its ugly face when trying to use it by the top and bottom edges of the flare being cutoff by the upper and lower horizontal line of the rectangle. "I cannot size the flare itself inside the composition, when trying to scale down its sizes the rectangular shape of the solid is what changes."

       

      I have switched the blend mode to SCREEN and ADD. I have tried keying it out with key light both were in adequate.

       

      The application for this flare is to be reduced in size dramatically to animate around the edge of another animated object. Hence the need for the flare to be as independent, as a subject keyed out of a blue screen that can be added to any composition.

       

      I have searched the AE Tutorials and found nothing that comes close to either tutoring the build of a flare in AE or resolving the issue I have.

       

      Adobe forums and creative cow have forums with people trying to help resolve this issue but every question on this subject remains unanswered all the way back to 2010, though there is a ton of input.

       

      I am more than willing to start over if someone knows a good tutorial on making a flare with a transparent background.

      The tutorial I used was amazing and it did not seem that there was any issue with this problem in his tutorial.

      If you know of FREE plugins that work with AE 2015 for flares or Unmults, I am open to trying that.

       

      I followed Adobes directions for uploading the knoll 3d flare plugin and it would not take, I received the error upon opening. I also tried to upload knolls unmult-64 bit and could not get it to install either. 

       

      Any thoughts would be greatly appreciated.

       

      Thanks

        • 1. Re: How to build a flare with a transparent background
          chrisw44157881 Level 4

          either red giant's unmult or make your own in AE.


          First pre-compose your lens flare on the black solid layer and move all attributes to the new pre-comp.

          Then apply the Set Matte effect to the pre-comp in your main comp and change the "Use For Matte" property to luminance or lightness.

          Then change the pre-comp's blend mode to "Luminescent Premul."

          • 2. Re: How to build a flare with a transparent background
            Rick Gerard Adobe Community Professional & MVP

            You still need to spend some time with the basics. Basic AE

             

            You need to make sure you download the right version of Unmult.

            • 3. Re: How to build a flare with a transparent background
              Mrwipg Level 1

              Thank you for the input Chris, very nice. 

              • 4. Re: How to build a flare with a transparent background
                Andrew Yoole MVP & Adobe Community Professional

                If I understand your post correctly, you are using standard layer transform tools to position and scale your flare. Using Unmult or other forms of transparency won't resolve the problem you're having. Plus, you are losing the true beauty of lens flares, where seperate elements of the flare change at different rates as its position changes.  Your current flare's seperate elements will remain blandly static if you are just moving the whole layer.

                 

                You need to move the flare by moving its point of origin within the flare plugin, rather than from the layer.  you can link the flares point of origin with expressions. If you are working entirely in 2D this will be very straightforward. If you are working with 3D layers it may be a bit more complicated.

                 

                If if you need an explanation post back and I'll write a better explanation when I'm not on a mobile device.

                • 5. Re: How to build a flare with a transparent background
                  Mrwipg Level 1

                  Wow Andrew...This is extremely nice of you to offer this information....

                   

                  This kind of professional response is what Adobe prides themselves in having this forum for...

                   

                  This particular question has been being asked for the last six years and not one of the questions I have found has been marked with the correct answer. I am positive a plethora of others would love to know the proper work flow to accomplish this task. My AE 2015 is the stock version with no other plugins.

                   

                  I would find myself in your debt in receiving a work flow to accomplish this task.

                   

                  P.S. I have not had the time to follow chris's path yet.

                   

                  Thank you for your time and I would love to see the 2D version and the 3D version to resolve this task if you have the time.

                   

                  Thanks again

                  • 6. Re: How to build a flare with a transparent background
                    Andrew Yoole MVP & Adobe Community Professional

                    I'm guessing you're fairly new to After Effects so will keep this fairly simple.  As you get better you'll find all sorts of complexities to make things easier and better to work with.  Take Rick's advice above and use some of the Getting Started resources available.

                     

                    flare.jpg

                     

                    In the image above, slide A and B are what I assume you are doing at the moment.  A solid with Lens Flare applied has been parented to another layer, making the entire solid with flare move in sync with the layer (in my example, a small yellow solid.)  The problem is that the flare falls over the bounds of the solid, so the edge of the flare becomes cut off when the solid isn't filling the frame.

                     

                    In example C and D, I have used a simple pick whip expression to link the Flare Centre parameter of the flare plugin to the position of the Yellow Solid.  Doing it this way has two advantages:  the solid never moves, so the flare never gets cut off at the edges; and the flare looks more like a real life lens flare, because the different elements of the flare move and change according to the position of the light source, defined by the Flare Centre.

                     

                    I've posted a project file with both these examples, and with a simple 3D version as well.  The standard After Effects Lens Flare plugin is very simple, without a scale parameter, so it doesn't really work too well in 3D.  There are a number of more advanced third party Lens Flare plugins, the most common being Video Copilot's Optical Lens Flare, but these come at cost of course.

                    • 7. Re: How to build a flare with a transparent background
                      coer a2 Level 1

                      Andrew, your kindness to the beginner, I was amazed.

                      Mr.Mrwipg. Everyone starting as your case.

                      • 8. Re: How to build a flare with a transparent background
                        Mrwipg Level 1

                        Andrew

                         

                        Thank you so much again. You were absolutely correct!

                        My issue was I had pick whipped everything to the flare instead of one of the solids.

                         

                        My gratitude to you is high.

                         

                        Thank You