7 Replies Latest reply on May 31, 2012 12:48 AM by Harm Millaard

    Blur fault

    Richard M Knight Adobe Community Professional & MVP

      Windows 7

      3gig i7

      24 Gb ram

      Premiere 6.01


      Sony EX files 1920x1080 25i

      Sony XDCAM EX 1080i (HQ) sequence

      GTS 450 with cuda hack


      I have produced a title sequence in AFX which has titles over black that dissolve into each other and have a gaussian blur added at the transition. These look fine in AFX but when rendered and played in Premiere the blurs have a hard 'jelly mould' edge to them. It looks like the effect you get when the bit depth is not high enough. This happens with both hardware accn. on or off.


      Any thoughts?


      Richard Knight

        • 1. Re: Blur fault
          Jim_Simon Level 9

          Dynamic Link?

          • 2. Re: Blur fault
            Richard M Knight Adobe Community Professional & MVP

            Yes it was imported via dynamic link. 'Import After Effects Comp'


            I have deleted the clip and link and re-imported the same comp and all seems to be fine now. I will put it down to another of Adobe's 'Just one of those things'



            • 3. Re: Blur fault
              Richard M Knight Adobe Community Professional & MVP

              I spoke too soon, I have moved to comp to the correct place and the problem has returned. What is different is that the comp is above Black Video in this location on the timeline, if I turn the Black Video off all is well again. In CS 5.5 I found that Black Video did not work in HD and I used a 15min. Black AVI instead, I will try with this timeline and report back.



              • 4. Re: Blur fault
                Richard M Knight Adobe Community Professional & MVP

                Same fault with a Black AVI, I have tried with different underlying colours and the darker the colour the worse the fault.

                If I go to the Opacity control in the effects panel of the comp. on the Premiere timeline and change the blend mode to luminosity instead of normal that seems to work, perhaps there is something funny with the alpha channel from After Effects?




                PS can the forum spell checker please spell COLOUR right

                • 5. Re: Blur fault
                  Jim_Simon Level 9

                  comp is above Black Video


                  Don't do that.  I've found that the underlying black messes up the "liner light processing" with GPU acceleration.  Just leave it alone in track 2 and it should look fine.

                  • 6. Re: Blur fault
                    Jim_Simon Level 9

                    can the forum spell checker please spell COLOUR right


                    It does.  You mistakenly added a U there.

                    • 7. Re: Blur fault
                      Harm Millaard Level 7

                      English is a strange language. Let me explain:


                      There is no egg in eggplant nor ham in hamburger; neither apple nor pine in pineapple. English muffins weren't invented in England nor French fries in France. Sweetmeats are candies while sweetbreads, which aren't sweet, are meat. Quicksand works slowly, boxing rings are square and a guinea pig is neither from Guinea nor is it a pig. Why is it that writers write but fingers don't fing, grocers don't groce and hammers don't ham?


                      If the plural of tooth is teeth, why isn't the plural of booth beeth? One goose, 2 geese. So one moose, 2 meese? Doesn't it seem crazy that you can make amends but not one amend. If you have a bunch of odds and ends and get rid of all but one of them, what do you call the thing left? Is it an odd, or an end?


                      If teachers taught, why didn't preachers praught? If a vegetarian eats vegetables, what does a humanitarian eat? In what language do people recite at a play and play at a recital? Ship by truck and send cargo by ship? Have noses that run and feet that smell? Drive on a parkway but park on a driveway?


                      How can a slim chance and a fat chance be the same, while a wise man and a wise guy are opposites? You have to marvel at the unique lunacy of a language in which your house can burn up as it burns down, in which you fill in a form by filling it out and in which an alarm goes off by going on.


                      English was invented by people, not computers, and it reflects the creativity of the human race, which, of course, is not a race at all. That is why, when the stars are out, they are visible, but when the lights are out, they are invisible.