Skip to main content
Participating Frequently
June 13, 2010
Question

LR3 Slow Rendering

  • June 13, 2010
  • 22 replies
  • 29303 views

Just thought id post this up.. see if anyone else is having probs.. everytime i make an image adj, esp in the basic tab the image only fully renders if i zoom into it.. this is getting on my nerves now.. and also they seem to have removed the really close magnification on the zoom.. another feature missed for me.

PLSPLSPLS Adobe...

Continual rendering or atleast the option..


And the super zoom back.

Aaaaathankingyou.

    This topic has been closed for replies.

    22 replies

    June 17, 2010

    Having just upgraded from LR 2.7, the speed of LR 2.7 adjustment brush, spot removal and general rendering is fresh in my mind.

    LR3 is very slow in comparison, and appears to freeze on occaision when using the brush/spot tools.

    To my mind, it is not a matter of slow machine (Vista x64, 6GB ram, quad 2.4GHz) or operating system issues.

    LR 2.7 ran faster than this new LR3 on the same machine.

    Not totally thrilled with my latest purchase.

    - Peter

    Participating Frequently
    June 20, 2010

    yea my brush tool lags for about 3 seconds while im screwing my face up looking for the adjustment.. then oh shit, its renders the adj and ive done too much.

    June 16, 2010

    I am getting the same issues.  LR 3 is running like a pig on my system.  Nowhere near the speed of 2.7.  Frustrating.  I might actually swallow the loss and just re-install 2.7 .... something is defintely hogging the system resources with lr3 because 2.7 was night and day ... FASTER.

    Participating Frequently
    June 15, 2010

    I have exactly the same problem, windows 7 64 bit, 4gb ram, 1600x1200 monitor with lightroom 3 filling it.

    It happens in th loupe mode too for me.

    I expect it's happening for a lot of people and they don't realise it,  as you need to look quite carefully to see it, but when you do it just  looks like the photo is out of focus.

    Didn't happen in LR2 on the same system. It's abug and needs to be fixed.

    Inspiring
    June 15, 2010

    OK, here is a little graphic to illustrate. The labels make it self explanatory. You'll have top click on the graphic to see what is going on. This is a detail from screenshots from my 30" display with Lightroom in Full screen mode. I am using the develop mode and only touched the exposure slider, bringing it back very close to the original value (it went from +0.42 to +0.45, which is caused by the coarseness of the sliders). After that, you'll see that the display is a more fuzzy than the intial display. After zooming in and out to 100%, Lightroom rerenders the image more sharply and close to the original display right after going to Develop.

    Known Participant
    June 15, 2010

    Jao - that's exactly what I'm seeing.  Is this happening only when you're in Fit or in other ratios?

    Selby

    Inspiring
    June 15, 2010

    Selby,

    this is strange indeed. It always happens when I am in Fit and in Fill

    mode. In 1:4, 1:3, and 1:2, it also happens but not consistently.

    Sometimes I see it getting updated with some sharpness and sometimes

    it forgets.

    New Participant
    June 15, 2010

    I'm seeing the same problem.

    There are many instances where LR3 seems much slower than LR2. This is especially noticeable on a 2.4GHz with 4Gb (3Gb addressable) on 32-bit OS laptop that I use. I suspect it has something to do with the RAM intensive nature of both LR3 and CS5. On the above config, the only way that it's tolerable for me to work in LR3 and CS5 is to shut down all other programs--including Firefox and/or IE. Otherwise, plug-ins in CS5 complain about insufficient memory, and some, like Nik will simply crash CS5.

    [soapbox=on] Why is it that people who don't experience a similar problem jump to the conclusion that it isn't a bug? It seems to happen a lot in this forum. There are so many variables--if you're not experiencing it, great. Just report that. But just because it doesn't happen to you doesn't mean that the problem doesn't exist. [soapbox=off]

    Known Participant
    June 15, 2010

    Despite the title of this thread, it really isn't about slow rendering.  The bug that the OP, myself and others are seeing is that the detail never renders, no matter how long you wait.  It only renders if you zoom in to 100%.

    Selby

    Inspiring
    June 15, 2010

    I see it too. The image remains slightly fuzzy after changing any

    slider only to become more clear after zooming in and out. You'll see

    a sharpening-like step being applied maybe a second after you zoom

    out. It should do the same thing after you release a slider (to save

    some speed during the operation it makes sense to not do this extra

    step while you're manipulating a slider) but it doesn't. Looks like a

    bug to me. I don't experience the jaggedness that some people here

    refer to though just an image that hasn't been sharpened at the screen

    size so perhaps there is another issue too? The sharpening at screen

    size in the Develop module is a new feature of LR3. In LR2 it would

    simply always be slightly soft in Develop.

    Maybe some screenshots would help. I'll whip some up to illustrate.

    Perhaps the folks that see jaggies should do that too.

    New Participant
    June 15, 2010

    Yes I am experiencing this problem too and I'm on a Vista PC.  It was working fine With LR3 Beta 2.

    .

    Adobe Employee
    June 14, 2010

    Also, what is the screen size you're working at. Are you working at full screen, or in a window? Does the behavior change if you either make the window smaller or larger, or hide/show panels?

    -melissa

    Participating Frequently
    June 14, 2010

    Melissa, Right I have just tried reducing the lightroom window size and I makes things much better.

    Ok, so my Imac screen is 24in, If I bring in the bottom right hand corner in about 1in the problem vanishes.

    If I Hide the side the side panels to make the image in fit to screen mode bigger the problem remains.

    So it looks like the bug is related to screen size / Resolution Mine is 1920x1200.

    lightroom 2 which I have use for ages has never been a problem.

    I really hope this can be fixed soon as I bought the upgrade in good faith that it would be ok having been beta tested. I wish now I had gone for the 30 days trial.

    Nathan.

    Participating Frequently
    June 15, 2010

    wow this seems to have really blown up lol...

    Nathan.. i noticed one other funny thing u might wanna try... its not an answer just helps show the problem.. affect ur image so its in is lowres jagged state then increase the noise reduction slider... after the NR is applied the image snaps back to high quality.. but if you decrease the NR it remains in its jagged state... weird.

    i know there are plently of people trying to help but i feel they just dont get it fully... be patient.. Adobe will clock it eventually.

    and let me just catagorically state NO MY Q HAS NOT BEEN ANSWERED lol..

    BSC_PHOTO
    Participating Frequently
    June 14, 2010

    I too have had this exact problem not to mention others. But I'm also seeing a lag in rendering my adjustments. I have found I will over shoot an adjustment because I think it's rendered.

    Just plain annoying.

    New Participant
    June 14, 2010

    Yea, and not for lack of Power in my mac pro tower with 12 gig Ram! it annoys me too that for me to see sharpening taking hold i need to zoom in. Is this really 64 bit or is it just called that??

    Participating Frequently
    June 14, 2010

    Are these photos with existing settings, or are they new imports?  Just try something for me - rather than zooming in and out again, flick to the next picture and back again instead.  I'm wondering if you're seeing the same bug I reported a couple of weeks ago.


    What was the bug?

    New Participant
    June 13, 2010

    There is no way this one is answered! I shoot sports and i havent seen rendering this awful at the largest thumbnail size. I ussually could read the bib numbers on people before and didnt have to go into full mag of the file very often but not it is fuzzy and takes way to long to generate even though i went ahead and optimized the files in the folder.

    Not happy with this...

    Inspiring
    June 13, 2010

    Are you really expecting Lightroom to render a full 100% preview image in real time? It is going to take at least a few seconds to calculate the entire image in full resolution from the raw data even on the fastest computers. That is what it has to do in the Library module (where the basic develop tools reside) in ordert to show you a zoomed in image after you change a parameter. In the Develop module, it simply only calculates the part of the image you can see when zoomed in and when zoomed out it only calculates at lower resolution.

    Participating Frequently
    June 13, 2010

    No, Of course not. Right, I am talking about the fit to screen view in the develop window.  It starts of fine then any adjustment makes the image jagged, and it stays that way until I zoom in and out. ( forcing it to re-render )  Then as soon as any slider is moved it goes all jagged again.

    Lightroom 2 only stays jagged for a fraction of a second. Lightroom 3 stays jagged until I force it to re-render.

    In short

    1 Open image in Develop window, It looks fine

    2 Make any adjustments ie Exposure, recovery etc and the image instantly turns jagged and remains that way.

    3 Using mouse or space bar to change to 100% and back to fit on screen the image is now fine.( If you don't let it complete this fully it wont correct it.)

    4 Attempt to make any adjustments and it goes again.

    Participating Frequently
    June 13, 2010

    I haven't had that problem in any of the version of Lightroom. Move the slider and the images gets jagged, I mean. It look like a bug or slow machine issue. It shouldn't happen.