7 Replies Latest reply on May 17, 2017 10:28 PM by D Fosse

    Photoshop having time delays and issues with heavy banding

    KARRRRMA

      Hello, I am using Photoshop CS6 Extended on a Power Mac, system 10.9  OS X Mavericks. I am unable to upgrade my computer or software at this time.

      I have a file 30 by 30 300 DPI PSB  only three layers. The problem I am encountering is a time delay between brush strokes wich is in return creating heavy banding. I am using a soft brush with very low opacity and low flow. My brush setting in the past has not been a problem.  The power output is at 100 % capacity and have plenty of room on my hard drive and have a backup external drive as well.

      I do understand why I am encountering the time delays and banding what I can do to resolve the issue?

      Screen Shot 2017-05-17 at 5.06.57 PM.png

        • 1. Re: Photoshop having time delays and issues with heavy banding
          melissapiccone Adobe Community Professional

          You file is 30 by 30 what? Pixels, inches, feet? 30 x 30 inches at 300ppi is HUGE!! How much RAM do you have? Pretty sure that will bring PS to it's knees...

          • 2. Re: Photoshop having time delays and issues with heavy banding
            davescm Adobe Community Professional

            Hi

            You can probably separate the two issues.

             

            The banding is likely to be caused by working in 8 bit. With low opacity/flow and soft brushes you really need every step in the gradient you can get. So you do need to work in 16 bit.  If you are already in 16 bit then it is likely that the banding is only on your screen and not in the actual image.

             

            For the slow brushes - a 9000 x 9000 pixel image is large but not massive. However, how big (in pixels) is the brush? Sometimes on large images we end up using larger brushes. I have a reasonably fast system here with 64GB memory and I can still see slight delays with very large brushes (e.g. 5000px brush). If you are using very large brushes, you may have to live with it until you can upgrade your system.

             

            Dave

            • 3. Re: Photoshop having time delays and issues with heavy banding
              KARRRRMA Level 1

              Thank you both Melissapiccone and Dave here hope is more  helpfull info

               

              I am using Photoshop CS6 Extended on a Mac Pro , 3.5 Ghz 6 core- intel Xeon ES Memory 32 GB 1866 Mhz DDR3. Graphics AMD FirePro D500 3072 MB running OS X 10.9.5 Mavericks.  More information I created the same file on Macbook Pro and I am not encountering this issue. So why then is it happing on my Mac Pro? I do not understand why I am encountering the time delays and banding what I can do to resolve the issue? As for the file size yes it big but I have used this size before with multi layers in PSB format without problems. As for the pixel size of my brush its on the large size around 2100.  I also have and

              HP Pavilion 27xi 27-Inch Screen LED-lit Monitor

              Any help you can provide would be greatly appreciated Thank you,

              Abby

              • 4. Re: Photoshop having time delays and issues with heavy banding
                davescm Adobe Community Professional

                Hi Abby

                The issues of banding and slow draw are likely to be separate.

                 

                You did not confirm whether you are experiencing this when working in 16 bit mode?

                One other thought. Have you tried changing the GPU settings in Preferences -Performance (e.g. Advanced/Normal/Basic etc)? It is just possible that a driver update has caused some issues.

                 

                Do you have plenty of scratch disk space (even with large RAM - Photoshop still builds up the scratchdisk)

                 

                Dave

                • 5. Re: Photoshop having time delays and issues with heavy banding
                  KARRRRMA Level 1

                  I am sorry Dave I was using 8 bit and have the GPU set at basic. I also did try 16 bit and still encountered problems.

                  Do you any more ideas of what I can do to resolve this issue?

                  Thank you for your help,

                  Abby

                  • 6. Re: Photoshop having time delays and issues with heavy banding
                    KARRRRMA Level 1

                    Dave, I think I may have to reinstall Photoshop and related software. Is there a correct procedure for uninstalling and reinstalling software non CC based?

                    Thank you for your help,

                    Abby

                    • 7. Re: Photoshop having time delays and issues with heavy banding
                      D Fosse Adobe Community Professional & MVP

                      Some banding is unavoidable with such a shallow gradient. This has nothing to do with Photoshop.

                       

                      Even if the file is 16 bit depth, the display system is still working at 8 bit color depth - so you still see the 256 discrete steps from black to white. A 10 bit display path is possible, but is only supported in some expensive monitors and video cards, yours not among them.

                       

                      IOW the banding is not in the file, but your display system. If the banding is very irregular the problem is most likely a bad monitor profile, or calibration tables in the video card with extensive curve adjustments.

                       

                      The standard way to deal with banding in synthetic gradients is to add a tiny amount of noise. It doesn't take much. Even the most fine-grained photographs always have just enough noise to conceal any banding, so it's never a problem there.