RAM preview questions

1. Is there a way within the AE interface to monitor the amount
of used / available RAM during an active RAM preview?
2. Is there a way to display the number of the frame that is currently
being processed during the course of a RAM preview?
3. Is there a way to initiate a RAM preview in reverse beginning
from the current frame? Alternatively, is there a way to initiate
a "spacebar preview" in reverse beginning from the current frame?
4. Is there a way to retain the processed frames of a RAM preview
after making a timeline change that does not affect the already
processed frames?
Question 4 examples:
-RAM preview first 120 frames, view result, extend the active
work area to lengthen the RAM preview, the entire RAM preview
needs to be re-rendered from beginning.
-RAM preview first 120 frames, interrupt and view, activate hidden
layer that begins at frame 100, the entire RAM preview needs to
be re-rendered from beginning.
thanks

First of all: I'm German, I make mistakes!
I don't know any real solution for any of your questions, but I have some work-arounds:
1. Is there a way within the AE interface to monitor the amount
of used / available RAM during an active RAM preview?
1. On Windows 7 you could look at the (I think it's called:) mini application on your desktop that indicates the usage of processor and RAM simply by hovering with your mouse over the little bar at the far bottom right, that shows the desktop. That's what I do!
If your not comfortable with that (or not able to) then the only way I know to figure something out about the (possible) RAM usage is to look under the preferences in the "Memory & Multiprocessor usage" (or something similar, I own the German version...).
2. Is there a way to display the number of the frame that is currently
being processed during the course of a RAM preview?
2. Maybe you could insert a timecode effect. Just make a new solid and choose the effect from Text/Timecode.
3. Is there a way to initiate a RAM preview in reverse beginning
from the current frame? Alternatively, is there a way to initiate
a "spacebar preview" in reverse beginning from the current frame?
3. I don't know any way to start a preview reversed, but you could set your work area to the area to want to preview (uncheck "From current time" option! That's what I didn't know How to limit RAM preview to the work area?! ) and also check the "looping option" in the preview panel to "ping-pong" (I don't know if they're called so...).
4. Is there a way to retain the processed frames of a RAM preview
after making a timeline change that does not affect the already
processed frames?
4. After Effects actually does exactly that! But it doesn't seem to know, if the layer is above or beneath the already rendered ones. Also if you change a keyframe it will re-render everything up to the next keyframes. But apart from that it does keep the rendered keyframes without re-rendering really, really unnecessary parts.
I also just tried out extending the work are and it keeped the rendered frames. Maybe AE didn't had enough RAM to keep yours?

Similar Messages

Another RAM preview question. CS6

Hello everyone! I am currently working in After Effects on a video that uses an evaporation effect. When I use the RAM preview function only about 200-250 frames load out of 1200. At this point After Effects stops loading a RAM preview and just plays the few seconds of video it has loaded. I am trying to watch the entire 12 seconds of the evaporation effect.
I then tried to use footage that has no effects added to it, and the same thing is happening. I recently cleaned my disk cache, and this problem started happening. I feel like that is a coincedence though.
This problem was not happening a few weeks ago and after searching the forums I have not been able to find a solution that worked. Thank you for any helpful responses you can give.
Computer Specs: Macbook Pro. OSX 10.75. 2.2 GHz processor, 4gb Memory, 158 gb free storage
Video specs: 60 FPS, 1280 x 720 , H.264

This question is answered in the Forum's FAQ section:
Why does RAM preview only play part of my composition?

Ram preview question

hello forumers.
ive made a short 1min little intro but the ram preview will not go all the way so the intro will not play so i can see it uptil 1:00min it only goes half
way and stops.,what can i do?
thanks.

http://forums.adobe.com/thread/424030

Really my question is about after effects, which then renders to a quick time movie. I have imported music into after effects many times, and all of a sudden after import and playing it under ram preview, it stops about 4/5 through the work.

when I import a song into after effects it only plays 4/5 and then stops. I'm viewing it in RAM preview.
the composition time is fine.
can you help me???
Roxanne

See this:
"FAQ: Why does RAM preview only play part of my composition?"

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

Hi Todd, thanks again for your reply ... FYI, I bought the FX3800 for Avid editing, for which it is the qualified video card, and supports distributed processing in the Avid along with my DX HD hardware BOB - I had hoped it would work well with After Effects, too, but I do understand the Adobe is very transparent about the fact that, as long as your card has OpenGL support, probably best to sink your $$$ into more RAM or faster CPU .. but to stay on topic, I am just very stunned that I am not getting better playback with my system ... I have the most recent Nvidia drivers ... I have 2 NEC 2490WUXi2 each connected through DVI-D to my video card, each runnign at its native 1920x1200 res, 59 hertz ... the programs I have installed are Adobe CS4 Production Premium, Win7 64bit, MS Office 2007 Enterprise, latest version of Quick Time, Media Player version 11, and NERO 9 ... you dont think that one of these video player apps (like media player or QT) are messing with my screen performance do you? what about Nero 9, have you heard any compatibility or display problems associated with this app? would unistalling any of these programs be a troubleshooting technique that you'd attempt?
Finally, when you say "an issue with a bottleneck of drawing to the screen" what do you mean exactly? 'cause this kinds sounds like a goood description of what I am seeing ... what might be the cause of such a bottleneck, I am willing to try anything ...
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.
I recommend turning OpenGL rendering off for all but interactions. I.e., choose the http://help.adobe.com/en_US/AfterEffects/9.0/WSAF696587-2D81-42e2-B248-4C5C2B7D3614a.html and turn off http://help.adobe.com/en_US/AfterEffects/9.0/WS3878526689cb91655866c1103a4f2dff7-79e8a.htm l. OpenGL is not compatible with Render Multiple Frames Simultaneously multiprocessing.
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.
>

After effects cc RAM preview problem

I recently bought a new rig
i7 4790K running at stock
8gb 1866mhz corsair vengeance pro ram 2x4gb
EVGA GTX 770 2gb superclocked
WD Black 1TB 7200rpm
Samsung 840 Pro 128gb
Asus Z97-PRO motherboard
I run AE and open a file and import my clip (59.94fps) and add twixtor and then hit ram preview to see if all is good and it either takes a little bit longer than it should
or it would say "Rendering frame switching to foreground" When this happens all seems ok but after the preview I can not scroll through the timeline without lag and pixelation again like as if I havnt hit the ram preview. So it would have the green bar above the clips showing for the ram preview but once the preview is over I can scroll through the timeline for a second then the green bar goes away. I know that the pixelation is due to adaptive resolution
but I have tried changing that to "fast draft" and the pixelation stops but still struggle to view in timeline. I have the preview resolution set to third or quarter.
I thought that getting higher clocked ram would solve the problem atleast a little more. But not to much. So my main question is what am I doing wrong? Or how can I correctly setup AE or my computer to handle this?
The main clip is actually 200fps but I go to File>Interperate footage>Main>Conform to framerate
Changing it from 200fps to 59.94.
My main frustration is I see videos of the kinds of clips I'm editing posted by kids that edited them and I think theres no way they have a pc as expensive as mine that would allow them to edit these clips. So Its gotta be something I'm doing wrong.
Thank you to anyone that helps so much!

Well, for starters, turn off MP rendering. That warning during RAM previews is a clear indication that you are using it and well, with just 8GB RAM it doesn't exactly make sense. The rest is too vague since you haven't provided any proper details about your source file, but suffice it to say that temporal mangling of any kind can have weird effects, even more so if your source files are compressed. Therefore the pertinent thing to do first would be to convert your file to an uncompressed intermediate format, including conforming it to your target framerate. In addition you may simply consider not using any fast previews or the disk cache at all. It is known to be flaky with temporal plug-ins. set your comp to Final quality to enforce software mode rendering.
Mylenium

After Effects Ram Preview Drops Frames , Using Strangely Too Much Ram

System Specs :
     CPU : Core i7 4770k
     Memory : 16 GB DDRIII
     Graphic Card : GTX 770 4GB RAM
     Storage : 256 GB SSD + 2 TB HDD
     OS : Windows 7 SP1
     Using After Effects CC 12.2.1.5
NOTE : NOT ANY ADDITIONAL HARDWARE IS ATTACHED TO MY PC . NO SOUND RELATED EQUIPMENT NOR CAPTURE CARD NOR ANY THING ELSE
Hi there
As you Already Don't know I'm an After effects Specialist Using it for quite long time . There is an Ancient Problem with CS6 CC versions . I have a short Small size 1080p Video , about 8 MB , I drag it into project panel and then put it into timeline hence it creates a sequence . There are no Effects and nothing added to timeline , just a small simple video . The Strange Problem is when I click "0" for ram preview , The video starts playing and the green bar above timeline starts to fill . When Ram preview Finishes and plays the video from beginning I See there are several frames Between which are not being loaded to Ram ! The video plays RGB color bar instead of main video and when I check the Green bar above Timeline I see that those frames are being dropped and there is no Green bar above them !
I have had this problem several times before but this time it is too important and the problem should be solved . What is obvious is that some frames are not being rendered or are being deleted after render !
Another Strange problem is that when I open Task manager , It shows AE uses around 10 GB ! of RAM when I press "0" for Ram previewing this video !
So there is a Logical explanation here , Somehow when I do ram preview this video it uses extra ordinary too much ram so AE is unable to load the full video (8 MB) into Ram and hence deletes some of frames .
most of my videos have not this problem and use acceptable amount of ram .I've had this issue with some of my videos till now .
Listen carefully : "This has nothing to do with AE preferences or low memory or plugins . because there is nothing wrong with any individual components of may hardware or software . I have far more than enough RAM for a 8MB video . My Memory has no hardware or software problem . I tested them and if there was any problem with memory or other hardware that should have affected other applications . I have the most recent AE version . I have the most Recent windows updates and drivers . I have a Clean virus free system , and as a computer engineer this strange AE problem is rarely caused by viruses , trust me . I have not any hardware instead of ones a normal PC has . I have not any problem with my whole entire system configuration because I have benchmarked my PC with several up to date softwares . I have tested my PC with almost any STRESS TESTING solutions available for really long period of time , 3 days by IDA64 . Not any driver conflict , dll missing , registry problem have been discovered , as I know perfectly how to solve them ."
I asked some of my friend whom are expert in AE . I handed them my videos and Watched ALL OF THEM HAD THE SAME ISSUE ! So the problem isn't related to my Local PC . What i believe is that there is some malfunctioning or miss coded part in AE source code that decides to reserve such a huge strange amount of ram for such a tiny 8MB video . The point is that the AE works fine , no crash or any problem report . So the AE it Self decides to allocate such huge amount of ram and thinks it is correct ! So I think this is a work around that AE developers in adobe are using to bypass a problem or conflict ! by Using more amount of RAM . I think that there might be some miss understanding between the AE and my installed codec . I installed MEGA CODEC PACK on my PC to enable some new codec supports , and so are some of Windows default de/encoders changed to new ones . I think there shouldn't be any problem But there is something wrong between AE and de/encoder modules !
Please any one with any suggestion , I really appreciate your advices .

###UPDATED###
Well thank you guys for your patience ...
as you considered I forgot to mention the codec itself and other stuff ...
The video is in 1080p , 35 sec long , it is a green screen shot , this video is directly downloaded from YouTube and plays perfectly on all tested PCs . here are detailed info :
Format                                   : MPEG-4
Format profile                          : Base Media
File size                                 : 8.55 MiB
Duration                                 : 34s 993ms
Overall bit rate mode                : Variable
Overall bit rate                         : 2 050 Kbps
VideoFormat                            : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : [email protected]
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Bit rate                                    : 1 927 Kbps
Width                                      : 1 920 pixels
Height                                     : 1 080 pixels
Frame rate mode                      : Constant
Frame rate                               : 30.000 fps
Color space                              : YUV
Chroma subsampling                 : 4:2:0
Bit depth                                  : 8 bits
Scan type                                 : Progressive
NOTICE : This video is just for testing the lighting and etc , and so the Sampling and other specs are not considered for broadcast .
I think you hit the point ! Thats K-lite codec pack installed on every machine which the video is tested on ! The point is whats wrong with it ?! I have had never ever any problem with this codec pack !!!
The deadly question : So what are the alternative ways to work with codecs that AE doesn't support ?! because installing codec looks simple and sufficient !

RAM Preview timecode counter ... where did it go?

This issue has been bothering me for a while now, but I've kept forgetting to inquire about it until now and really hope someone knows the answer ...
Up until recent versions of AE, while RAM previews were being generated the frame-by-frame timecode would count off in AE's viewer window as each frame rendered. That was very useful when using RAM previews to review compositions frame-by-frame for various reasons, rather than only to see real-time playback. That feature went away somewhere around CS1 or CS2 and I miss it terribly since it is very useful for identifying specific frames that one couldn't possibly pinpoint during realtime playback.
Was the feature replaced by some new way of accomplishing the same that I just haven't found yet?
people attempting to help have directed me to the Info Panel, which indicates I haven't explained my question clearly enough since the Info Panel doesn't display frame-by-frame timecode as a RAM preview is generated ... only the total number of frames, not an actual timecode count as those frames render.
Thanks for any help and, if any of the Adobe AE team happens to see this, please consider this a request to return that very useful feature to AE.

Thanks, Todd.
I've just submitted this as my second AE feature request ever ... I was actually hoping the feature had just been moved somewhere I hadn't found it yet since I didn't have any luck with my first AE feature request, which I think I've submitted once per version since version 4 ... to do away with the loaded plugin limit that forces plugins into a randomly organized "other" folder when the user has someone's idea of "too many" plugins installed. I've heard various arguments for why it shouldn't matter, but have yet to hear one that genuinely seemed valid, although I do understand how it can be a non-issue for many AE users depending on differences in circumstances, project types, workflow, etc.

RAM preview is always zoomed in

This is my first day trying to use after effects. Whenever I use RAM preview, the preview is zoomed into something like a 30 pixel square So, I exit the preview move zoom in the composition panel away from "fit", then back to "fit" and preview and it renders the entire preview. Then if I render again it's zoomed into a 30 pixel square, then I do the back and forth thing with zoom, over and over.
Do you know what I could have done that makes it do this? I want it to display the entire area not be zoomed into a grid of giant pixels.

First try resetting your workspace. You'll find the option at the bottom of the workspace menu. Second, reset the Preview Panel options by clicking on the little menu icon at the top of the Preview Panel tab. If neither of those steps work then delete your preferences file by pressing and holding Ctrl/Cmnd + Aat/Option + Shift as you click on the program icon to open After Effects. If that doesn't work tell us the version of AE you're using down to the last decimal point and your OS and show us a screenshot of your composition with all the properties of all the layers in question revealed by selecting the layers in the timeline and pressing the U key twice.

Adobe After Effects CS6 Ram Preview Crash Problem

Hey, Recently my AE cs6 has been crashing when I started to RAM preview and the message that shows up is. "After Effects error: Crash In Progress. last logged message was: <1948><ai.blit.pipe><2> HardwareBlitpipe Disenaged."
Specs:
AMB 8150
16 GB of ram
GTX 660 Ti

We need to know a lot more if we're going to help you. Please provide answers to the questions listed here: "FAQ: What information should I provide when asking a question on this forum?"

Can't do ram preview, but why?

Hello,
I've been asking this question allready in several forums. I got a problem with ram preview in After Effects.
My PC system:
CPU: AMD Phenom II X6 1055T
Mainboard/Motherboard: GIGABYTE GA-870A-UD3
Graphic Card: Gainward GTX 460 GS 2048MB GDDR5
HDD: WD 500MB
Ram: 12GB SO-DIMM DDR3 A-Data Value 1333 CL9
Windows 7
After Effects CS5
Now when I want to do a ram preview it gives me only about 1,5 seconds, then it stops rendering. Enabling the multicore function will lead to an error message: "Not enough ram installed". When I click on "Details" in pre-settings window in AE, it tells me:
Installed ram: 12GB
Current Ram usage: 0,31 GB
Permissible Ram usage: 0,4 GB
Max. usable memory: 12 GB
Max. allowed memory: 0,4 GB
Minimum required memory: 0,4 GB
Isn't this weird? It seems like AE is not checking that there is 12 GB installed.
PS: In the settings I have set "Ram reserved to other applications" to 1 and "Ram available for AE" to 11.

I have win7 64bit.
C:\Program Files\Adobe\Adobe After Effects CS5\ and all the files are actually in \Support Files\
I've found some talk online about the problem being tied to the Dynamic Link processor. But I have allowed my Dynamic Link manager through my firewall and nothing has happened for me. I've uninstalled AE and had no luck either. I reinstalled it and the problem was still there. I re-installed the latest patch and still nothing. Oddly, I have noticed the Premiere lists my RAM for other programs at 0 now too. I had previously set that to 3GB.
Are there other .dlls I need to permit through the firewall?
http://www.videocopilot.net/forum/viewtopic.php?f=4&t=41867
http://forums.creativecow.net/readpost/2/990191
http://www.slashcam.com/EN/info/AE-CS5-max-allowed-usage-Ram---Ram-preview-performance-438 189.html
http://ftp.postforum.com/forums/read.php?f=11&i=10508&t=10508

RAM Preview - Not in realtime

Hello
On my computer, whenever I try to playback somehting to see a preview, it plays at 17 frames per second, with red text saying, Not in realtime. Is there anyway that this can be remedied?

Make sure you are depressing the Zero key for ram preview. I bumped into this the other day because I had selected AJA Kona as my display option in Preferences. When I switched it back to Computer it played back in real time. The other reason might be a very complicated sequence on a computer with slow processers or not enough ram. You always need to share the details of your system when asking questions like this so folks know what you are using.

RAM Preview framerate and sound issues

The same story as usual. A beginner who can't get the framerate right or the sound to play in the RAM Preview. Well then:
Ae CS6.11.0.0378, I think
Demo version
7,9 g ram allocatable
Win7 proffesional
Only .avi and .mp4, can't tell much more than that
All other common factors can think of vary between the layers, with no difference.
Sound preview set to 10 minutes
No mute-related settings activated
Sound and volume checked for each individual layer
I don't know what more to submit, there's probably a lot.
It's quite simple. No sound in the RAM preview, and it keeps freezing, not responding when I start it, and playing at random speeds. The sound does play in sound preview. The framerate is set to auto.
That's about all I can think of. It probably needs a lot more detail required, but not anything I can think of. Any help appreciated.

You can get the frame rate right by dragging a clip in question onto the Make Comp icon at the bottom of the project window.
If you're fooling around with time -- time stretch, time remapping, posterize time, time displacement -- or using Rotobrush or Warp Stabilizer -- you should know that AE doesn't like mp4's as the source video. No telling about the avi.
There could also be compressed audio in the video files, and AE has never played nice with compressed audio.

Super slow audio RAM preview issues in AE CS5

Hi all,
I've been having a tough time previewing audio while working in AfterEffects. I'm using Version 10.0.2.4, running on a 2x2.66 GHz 6-Core Intel Xeon Mac Pro with 64 gigs of memory.
I've opened up projects that have never given me any issues in the past and I seem to be experiencing the same issue, over and over again:
When I try to preview a comp with audio (either hitting "0" on the keypad, or "." on the keypad), I get the "spinning beach ball" for at least 20-30 seconds before the audio kicks in. When I disable audio in my preview window, I have no delay with the RAM preview.
This happens with .aiffs and .wav files.
I've done the usual tricks -- restarting my machine, double checking to make sure there's not an issue with my speaker setup, repairing permissions, checking for updates.
Has anyone else experienced these issues, and is there a workaround? I have a job coming up that requires me to quickly preview audio and waiting 30 seconds every time I need to check my progress with a RAM preview is going to be soul-crushing.
I'll happily answer any questions -- I'm sure there's a bunch of info I've left out, and fingers crossed it's just some setting that I've ignored that's causing this issue.
Thanks,
Dan

Sorry for all the questions, but...
What path/hardware does your audio take to be output? Analog from the Mac? Via a third party card like an AJA or Blackmagic device? USB speakers?
Have you specified the audio device in the AE audio hardware preferences? Have you tried outputting to a different device, or removing the device and just using the standard system audio?

After Effects Rendering Problem and RAM Preview Problem

I posted a question about this yesterday but I thought I would repost it with more detail!
I have a restless issue here with rendering and RAM preview. I am simply trying to create a viral ad which uses the cloning effect I achieved with masking for my college coursework and I have completed the process of creation but I have ran into problems. The RAM preview will only play up to a certain point then it will just stop and this effects the final render because it gets to the point in the rendering where the RAM preview stops and then a message will pop up saying the rendering has failed or something? (Screenshots Below)
I have tried RAM previewing just one of the three videos I am using and it still stops at the same point.
I am using .avi files and have tried converting to .mov, .mp4, .wmv all of which didn't work.
I am using After Effects CS4 ver 9.0.0.346
My computer specs
AMD SEMPRON processor 2.7Ghz (single core)
2GB RAM (I know its not alot ;))
ATI Radeon HD 5600 512mb
Creative audigy 2 sound card
Windows XP Serivice Pack 3
It's quite urgent and I hope someone can help!
Cheers!

With just 2GB of RAM, I'm impressed that you can generate that much of a RAM preview. RAM previews use RAM. When they run out, they stop.
Have you tried rendering the clip using the Render Queue. If so, does it also report an error at a similar point? If it renders correctly from the queue, you're done. If it doesn't, you probably have a corrupt source file.

RAM preview questions

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