Disappearing RAM Preview? Whaaa!!!??

Hey there. I searched but didn't see this one specifically.
So, recently switched to CS4 and can't figure out why, after doing a RAM Preview, one click anywhere in the timeline makes the green line disappear and kills my preview. Never seen this behavior before.
I'm on a 8-core MacPro with 16 GBs of RAM using OSX 10.5. I'm just compositing Animation compressed MOVs and whatnot. Nothing special. Multiprocessing is turned on but most of the prefs are default.
Thoughts?

Have you updated AE to 9.0.2? There used to be a few issues with the initial release on the newest Nehalem Xeons, but the patch should have rectified all of that. The only other thing I could think of, barring actrual physical damage or electrical problems, are issues with third-party capture cards, CoDecs tied to such cards and last but not least graphics card issues that somehow messes with openGL usage and thus prematurely invalidates previews if OpenGL is on...
Mylenium

Similar Messages

  • Disappearing RAM Previews

    Uh oh.  Is it my (Windows Vista) machine going downhill or is this an After Effects CS4 thing?  I'll do a RAM preview - standard definition, maybe 10 seconds, no biggie .. and after I get a green solid line I'll play the preview.  Once I play the preview - POOF - part or sometimes all of the RAM preview disappears and I have to re-render the region.
    Preferences:
    I don't have Multi Processing on.  I am not writing to a disk cache.  I have Prevent DLL Fragmentation on.  32 levels of Undo.  Files are local on the drive - nothing external.
    It seems like a recent thing too, and I haven't changed anything.  I also find that I'm waiting more and more for the dreaded Locking Existing Frames in the Info box.
    Version 9.0.2.42
    My misery would love some company,
    Thank you,
    Marc

    Any recent updates on the graphics card or audio driver?
    No.
    Media Player?
    As in do I have Windows Media Player?  Yes.  Version 11.0.6002.18065
    Any alternate video players installed?
    Just Windows Media Play and Quicktime.  I even tried upgrading
    Did you do some system maintenance - cleanup with CCleaner, defragmentation, scandisk?
    No.  I have plenty of space too ... 55GB.
    What source footage?
    Doesn't matter - it happens with everything and anything.  From just Illustrator parts to timelines that are just cuts of Quicktime movies to AVCHD .mts files.  Each has the same Locking Frames delay and then disappearing sections of RAM previews.  Operative word by the way is SECTIONS - not ALL of the preview will disappear.
    What effects are involved?
    Nothing specific.  It even happens on layers that even feature NO effects.
    OpenGL?
    Nope.  Off.
    I know ... it's a real humdinger.  There doesn't seem to be anything that screams out, "You have the 'erase RAM previews' checkbox checked".
    Marc

  • RAM preview doesn't save when using multiprocessing

    I'm running After Effects CC on a MacPro 2013. When I normally render a RAM preview, and I finish playing it, the green bar stays.
    When I switch to the multiprocessing feature for RAM previews, after I finish playing it, the green bar disappears.
    I have a large SSD global cache drive being used, so storage of the preview isn't the problem. There's plenty of RAM in the system (64GB). I've tried a number of different multiprocessing settings, and even if I only use 2 processors for RAM previews, they won't save after I play them.
    Is this just the way RAM previews work with multiprocessing, or can I change some settings to fix it.
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    Jerry MacKay
    Littleflick Pictures

    Here's a shot of my current settings. I tried a number of other settings, with different numbers of processors and allocated RAM. But every time I enable multiprocessors for RAM previews, I get the same result (the RAM preview works, until I stop playing it...then the rendered frames are deleted).

  • RAM Preview issue

    Hi,
    I'm wondering if anyone has seen this or can provide some direction for further investigation. This is on a new Mac Pro on which I have just installed FCS
    In some projects the RAM preview has no effect on playback performance. After generating a RAM preview, the project will play at the same speed (say 2 fps) and as soon as I pause playing, the green progress bar that indicates project is loaded in RAM disappears or becomes fragmented - without modifying the project in any way. When this happens it also becomes nearly impossible to do additional editing as every simple task (as simple as resetting the play range) can result in the spinning beachball. There was a recent thread on RAM preview issues (http://discussions.apple.com/thread.jspa?messageID=12215113&#12215113) but it appears the problem there was due to a long HDV project. The projects I experience this on generally have a lot of particles or replicated elements, but are standard 720 x 486 resolution projects lasting less than 10 sec. System memory usage is relatively small, less than 4 GB.
    These issues arise on a recently purchased MacPro (3.33 GHz 6-Core, 16 GB RAM, ATI 5870). The boot disc is an OWC SSD, and user folders, scratch, etc are on separate hard drives. I installed the operating system on the SSD using the installation disc, and have manually installed all my programs from their original discs. (I initially used migration assistant to bring over applications, but that failed with some applications, so I wiped clean and started over). There have also been some past threads on how different hardware configurations can affect performance, but I don't seem to be doing anything abnormal here.
    What I have done:
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    Verified memory usage through activity monitor. The projects I have tested on use up less than 4 GB of system memory
    Before each test or comparison I reset preferences.
    I do not have this flakey behavior with an older MBP (17" 2.93 GHz Core 2 MBP with NVIDIA 9600) running the same OS (10.6.4) and motion version (4.0.3). Running the same project on the MBP will take longer for the RAM preview to complete, but when it does, the project plays at full frame rate.
    The upgrade to a MacPro was mainly for other CPU and RAM intensive applications unrelated to video or graphics, but I expected motion to show a nice performance boost over the MBP on this new machine. Anyhow, any insight or direction for further investigation that I should pursue will be appreciated.
    Thanks.

    I tried your project (nice, BTW), and yes, 20,000+ particles take some time to render. However, when I did a RAM Preview, I had no problems - after render it played at full speed.
    UNTIL...
    I selected the emitter. Then playback went to the pre-RAM-Preview speeds. As soon as I turned off overlays or made sure the emitter was not selected, the playback instantly sped back up to full speed. I believe this is because Motion needs to image the constantly changing outline of the emitter. This means it needs to be re-drawn every frame after Motion determines the extent/size of the 20,000 particles on their random journey.
    I think this is backed up by the fact that near the end of your project, there are only a few particles to keep track of and the playback appropriately speeds up. Also, CPU usage vastly increases when I turn on the overlays.
    Moral of the story? To ensure the quickest possible playback, turn off overlays (⌘/) or ensure that something like a particle emitter is not selected during playback.
    Patrick

  • Ram preview green line goes away when changing zoom level

    I did a ram preview of my project, about 12 seconds long.  Everything looks good until I want to zoom in or out on the comp, then the green line disappears and I have to render it over again.  I don't remember AE doing this before.  If I zoom to say 25% and render part of the comp, then zoom to 50%, that part with the green line is gone.  I can render a different segment of the comp while in 50% and switch back to 25%, and the green line from when I rendered at 25% is back.  I've turned off adaptive resolution in the fast preview options, and I turned off the disk cache.  Is this a bug or just the way AE works now?  I'm using CS6 version 11.0.2 on Win7.

    Actually, I think I am.  I didn't notice it before, but when I zoom in, if I have the resolution set to Auto, it changes between quarter, half and full depending on the zoom level.  I've never noticed that before, or maybe they only recently made it so it didn't say Auto all the time, but now says what effective resolution it's set to.  So is that the answer to my problem?  Leave it on full resolution (or whatever I need at the time)?

  • RAM Preview in Background w/ Windows Start Button?

    on this one project while doing a RAM preview on 1080p comp with complex particle systems (it was reeeeeally slow on my computer), i noticed that the windows start menu button in the bottom left corner didnt disappear, so i clicked on it and the video continued rendering the RAM preview in the background while i was able to do anything on my computer that i could access from the start Windows start menu. i'm assuming this was a very convenient glitch? the button disappears on renders of less information processing so i'm assuming this wasnt supposed to happen.
    has anyone else heard of this happening? if so, is there a way you know of intentionally making this option, to use the start button while rendering RAM preview, available every time?
    AE CS4
    Windows 7 32bit
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    Nvidia GeForce 8600 (256mb dedicated)
    Intel core 2 duo 1.5ghz

    i use other apps while after effects is open all the time, but i have never been able to use other apps while i have a RAM preview in progress, that is until i experienced this glitch thing. normally if it's doing a RAM preview, when i click on anything (or type on any key) it automatically stops the rendering and shows me the preview up to that point. is it normal to be able to use other applications while after effects is doing a RAM preview???

  • Ram Preview Flicker Glitch

    Hi there!
    Whenever I ram preview after adjusting a keyframe, the ram preview doesn't fully update the changes. When it plays back, it glitches like it's jumping between old and new frames.
    Now I'm working with a guy that uses the animation presets within after effects, this error pops up more in these effects.
    Not sure if that is what this error is called, but it is significantly slowing my workflow and making it impossible to work.
    I recently subscribed to Creative Cloud and downloaded CS6 on a newly upgraded machine.
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    Memory: 16 GB 1066 MHz DDR3
    Graphics Card: ATI Radeon HD 5770 1024 MB
    OS: Mac OS X Lion 10.7.4
    I first tried to turn off multi-processing to see if this would fix the problem (Prior to that I have been Purging my ram, but it only sometimes works, then after making a new adjustment the same error would happen again.)
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    Any help would be greatly appreciated. I have a deadline to reach by tomorrow night. Eh heh...

    At the begining of the animation, the preset animation called "Card Wipe - 3D Pixelstorm" It repeats after a few frames, I went ahead and rendered it out a couple seconds before so you can see the correct animation (x-axis/y-axis) vs. the Origin layer.
    Before I did clean out the disck cache to see if this would also fix the error. It did not. Also a wierd thing, whenever I move a key frame, the green bar on top doesn't dissapear.
    I would have to turn off the eye icon (the visual part of the layer) to make the green bar disappear.
    Sorry about the previous example, from that perspective I suppose it wouldn't really show the error. Thanks for the advice though.
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  • Plenty of RAM, but RAM preview clears itself?...

    Hello:
    I've got a 20 second motion project that I'm selecting a 5 second portion of (using the timeline in and out markers). I clear ram preview (just to be safe), then do a RAM preview.
    I watch my memory fill up partially in activity monitory. It only uses about 1.5 G out of a total of 4G RAM.
    Then, I play the project... it chokes. I've got a replicator and a mask or 2, with some graphics. The project is HD, but I've got an X1900 card.
    I also notice that as I scrub through the short burst I'm trying to preview the RAM preview (Green on the timeline) indicator disappears, reappears, get's chopped up, comes back.
    Is this normal behavior? Seems like I should be cooking with oil at this point....
    Thanks for any input!

    Fun fact:
    (Motion notes below) Final Cut Pro can only use a maximum of about 2.5GB of the 4GB maximum RAM it can allocate from the system.
    Final Cut Pro is a 32 bit application, which means it can address up to 4GB of RAM. Of that 4GB, Final Cut Pro uses about 1.5GB for libraries, drivers, and so on.
    http://docs.info.apple.com/article.html?artnum=93844
    Doesn't matter how much RAM you've got, that's the limit.
    Motion is going to encounter similar issues, but I don't have the numbers. You won't be able to use a large chunk of the 4GB it can allocate. (Also, if you've only got 4GB RAM total, a chunk of that will be allocated to the actual operating system)
    Message was edited by: mattlewis

  • After Effects Appears to "Close" and then Re-Open on RAM Previewing

    I've been having this problem the past week and I can't seem to figure out why exactly it's happening. The good news is that it doesn't crash! I will get a slight halt when the RAM Preview says it is mixing the audio and then the close/re-open behaviour. The reason I describe it like this is that the application window disappears and then the icon reappears to the front of the taskbar as if it had been re-opened again.
    Since it's not crashing it's not a major issue however is does become quite annoying when having to quickly review a lot of little changes one after the other. Does anyone have any ideas?
    Cheers,
    Jonny

    YOu have not provided any system info or other technical details, so we can't really know. A common guess would be driver issues with your audio and graphics hardware...
    Mylenium

  • Unable to create image buffer after RAM preview

    Running into an odd and frustrating error. Built a comp using the new Ray-traced 3D renderer and now I'm regretting being an early adopter big time with all the problems I've been encountering with it. The latest comes whenever I do a longer RAM preview in an attempt to watch the whole duration of my comp. It will get to about 170 frames or so, at which point I've interrupted by pressing spacebar because I don't need to see all the way to the end of my work area (around 220 frames). It'll play the RAM preview back fine, and even loop it, but as soon as I stop playback, I get this error message: "After Effects warning: Unable to create image buffer." There's only one button: "okay" and as soon as I click it the same error pops up again and it will never go away, forcing me to close AE from the task manager. I've taken to saving before every RAM preview like I used to do with Flash before previewing my buggy swfs for fear I'll lose all my work after previewing. Any ideas about what might be causing this?
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    Ray-traced 3D
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    Maximum Usable Memory:
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    Yeah, some buffer is very likely not flushing when you interrupt the preview and then there is no more memory on the graphics hardware. Consider setting the work area and your preview options to use only the work area. if it finishes the preview "correctly", it may not suffer the issue. Beyond that - raytracing doesn't/ shouldn't care about the number of items. The math is such, that it makes no difference whether you render a million polygons or just one. Of course there are still limitations due to the GPU dependency, but I doubt you ever truly exhaust the cards' geometry buffers. Compared to pixel data that is a small amount...
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  • AE CS4 - why such poor RAM preview on my FAST machine?

    Hi all, I just installed After Effects CS4 - I have a smokin fast mchine: quadcore Zeon 3.20 GHz, hyperthreading turned on, nvidia quadrofx 3800 with current driver, 12 GB DDR3 RAM, windows 7 64bit ... can you PLEASE help me troubleshoot a problem:  even on the simplest compositions, a moving picture or a moving piece of type, the RAM preview stutters along, the current time indicator hops along at a choppy pace, images in the frame dont look like they're moving smoothly, and all i get is about 6 seconds of RAM preview ... seems to me that I used to get better performance on a MUCH MUCH  slower machine under windows XP ... i have looked around the forums and seem the advice on multiprocessor options and the like, but nothing I do seems to help ... do any of you have any advice for me to improve my performance???  if you have any questions about my setup or preferences, let me know, I will be on this until I get what I expect out of my (otherwise incredibly fast) machine

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    Thanks, sir, for your reply!
    Derek Reid
    Trader Multimedia Inc.
    www.tradermm.com
    Date: Tue, 30 Mar 2010 21:46:43 -0600
    From: [email protected]
    To: [email protected]
    Subject: AE CS4 - why such poor RAM preview on my FAST machine?
    Just one thing to cut down a frequent misconception:
    Your nice graphics card doesn't do much for After Effects performance.In fact, trying to use OpenGL for rendering (including rendering of previews) can cause problems.
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    I'm not saying that OpenGL is your problem. Rather, because you mentioned your nice graphics card, I just had to stress that you need to forget about that with regard to After Effects. It's not really relevant.
    It may be that the jerkiness is an issue with a bottleneck of drawing to the screen. (I don't know, but it's possible.)
    Your hard disk being too slow wouldn't be an issue with RAM previews, since the frames are all cached in RAM.
    >

  • Issues with performance and RAM previews

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    You are reserving far too little RAM for other software.
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  • After Effects CS6 error: RAM Preview needs 2 or more frames to playback - any ideas please?

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    You need to have much more RAM reserved for other applications and more CPUs reserved for other applications. Your current settings are crippling your performance.
    Read these:
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    http://blogs.adobe.com/aftereffects/2010/03/performance-tip-dont-oversched.html
    After you have adjusted your settings according to the recommendations on those pages, restart your computer and try again.

  • I have no audio when I ram preview or after rendering in CS5.5

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