27" i-Mac with Grids showing in Adobe CS4

Discussion in 'iMac' started by Zcuda, May 25, 2010.

  1. Zcuda macrumors newbie

    Joined:
    May 22, 2008
    Location:
    S. Calif
    #1
    Ok I am new on here & couldn't find an answer or another thread discussing this. Please move it to the right Forum if I have placed it in the wrong one, Thanks.
    Ok so I am working in Adobe CS4 (Photoshop) & I am seeing grid boxes when I am zoomed at 600% all the way up to 3200%. I have looked at identical files in CS4 on a Mac G-5 & they don't do this. Below you will see a snap shot of what I see & the I-Mac info... Does anyone know if this is something that can be turned off?? I looked in preferences in CS4 but, saw nothing to turn it off. Thanks in advance, Jason.

    Specs:
    Hardware Overview:

    Model Name: iMac
    Model Identifier: iMac11,1
    Processor Name: Intel Core i7
    Processor Speed: 2.8 GHz
    Number Of Processors: 1
    Total Number Of Cores: 4
    L2 Cache (per core): 256 KB
    L3 Cache: 8 MB
    Memory: 8 GB
    Processor Interconnect Speed: 4.8 GT/s
    Boot ROM Version: IM111.0034.B00
    SMC Version (system): 1.54f33
    Serial Number (system): ---------------------
    Hardware UUID: 6764133A-6CDD-5034-B5F3-C4D9F8BB4351

    ATI Radeon HD 4850:

    Chipset Model: ATI Radeon HD 4850
    Type: GPU
    Bus: PCIe
    PCIe Lane Width: x16
    VRAM (Total): 512 MB
    Vendor: ATI (0x1002)
    Device ID: 0x944a
    Revision ID: 0x0000
    ROM Revision: 113-B9110C-425
    EFI Driver Version: 01.00.383
    Displays:
    iMac:
    Resolution: 2560 x 1440
    Pixel Depth: 32-Bit Color (ARGB8888)
    Main Display: Yes
    Mirror: Off
    Online: Yes
    Built-In: Yes
    Connection Type: DisplayPort
    Cinema HD Display:
    Resolution: 1920 x 1200
    Pixel Depth: 32-Bit Color (ARGB8888)
    Mirror: Off
    Online: Yes
    Rotation: Supported


    Below pic is zoomed in at 3200% .
     

    Attached Files:

  2. Tango Charlie macrumors newbie

    Joined:
    May 25, 2010
    #2
    I'm not in front of my pc right now, so I can't double check this stuff, but I am pretty sure it's an option. It come along with GPU acceleration, so if your older machines didn't have a supported card, that could be why it wasn't displaying.

    Go into the prefs and find the GPU settings. Should be under performance or something. There should be a little button to access more gpu settings, and there might be a preference in there. Or it could be in the General section. I'm not sure. But it is definitely an option.

    Hope that helps (sorry for the non-specificity)
     
  3. Tango Charlie macrumors newbie

    Joined:
    May 25, 2010
    #3
    (Basically, I'm saying double-check those preference panes. It may also be a tool option for the magnifying glass)
     
  4. Zcuda thread starter macrumors newbie

    Joined:
    May 22, 2008
    Location:
    S. Calif
  5. Zcuda thread starter macrumors newbie

    Joined:
    May 22, 2008
    Location:
    S. Calif
    #5
    aah Found it

    OK I found it here... I changed the setting but, had to restart CS4 for it to take affect. Now I need to look up whether it helps or hinders with it on or off. Thanks
     

    Attached Files:

  6. Tango Charlie macrumors newbie

    Joined:
    May 25, 2010
    #6
    I'm fairly certain it's an aesthetic option. Leave it on if you like it, off if you don't. Shouldn't affect performance in any meaningful way.
     
  7. Zcuda thread starter macrumors newbie

    Joined:
    May 22, 2008
    Location:
    S. Calif
    #7
    Performance

    OK so after reading up on the GPU option... it appears that if you turn it off then some of the processing that the GPU was performing is now put on the CPUs shoulders hence by leaving it on there are performance advantages. Thanks for the input everyone. Jason
     
  8. plasticphyte macrumors 6502

    Joined:
    Nov 9, 2009
    #8
    The effect you're talking of is actually an inbuilt feature of Adobe Photoshop CS4 - it's supposed to make working at the pixel level easier.
     

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