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RAM Preview Memory Problem
I’ve got what I think is a memory related problem with RAM Preview. Machine is 2 x 3 GHz Intel; 9GB of memory. AE CS3 memory settings are the default: Max Memory Usage 120% = 3.0GB, and Max Ram Cache Size 60% = 1.8GB. No apps running other that AE CS3.
I can’t preview over about 30 seconds at 720×486, if I’m lucky. Go figure. Further, if I shift the work area to a totally unrendered area, it won’t get rid of previously rendered frames in order to render frames in the new work area.
And it’s 30 seconds max with a test comp using only straight video and audio (no filters at all).
If I “purge all”, I only regain the ability to RAM preview less than 30 seconds of the timeline.
Other notes are that the green rendered frame indicators on the timeline are not correct sometimes. I can get a preview of a work area only half covered with green “rendered” indicators.
Last thing – I sometimes get the “2 frames required for preview error” after I’ve exhausted my supply of rendered frames (which is more like 26 seconds max at 720×486).
Does anyone have any idea what might be wrong here?? I’ve tried every preference setting I can think of. Purge seems the only fix when this occurs.
Jay Cordova
Springboard Creative/Atlanta -
8 Replies
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I’m not sure, but multiprocessor is currently activated, and the problem is there regardless of the multiprocessor setting in preferences.
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i think your ram preview will still be limited to 3gb… one app can only have 2-3gb of ram, and i think that only one instance of ae is used for preview playback…
the 2 frames to preview issue is often due to the time controls palette having the ‘from current time’ box checked. make sure that is unchecked, or make sure you are not at the last frame of the comp.
i think you could up your ram cache to be a full 2gb, maybe more. the ram cache is how much ram is available for each processor, since you have 9gb you should be able to 8gb to the 4 cores (you did say you had a 4-core macpro???)
Kevin Camp
Designer – KCPQ, KMYQ & KRCW -
Goto edit>preferences>Memory/cache and clean the cache.
It is ridiculous that this must be done and is not automated.
Good luck! -
I run into this all the time in CS3. I believe there is a serious memory leak in CS3. I notice after working for various amounts of time I will get this error. I, too, have tried every combination of RAM cache setting I can think of & purging the cache & emptying the cache, ect. Over time it simply fills up. Eventually even clearing the cache will not help & the program MUST be restarted.
To further complicate the matter & alienate me from CS3, is the fact that the problem extends to renders. God help you if you work in HD 1920x1080i. Turn on 3D layers & a single light & roll the dice if it will render a single frame. I have 4GB of memory but that is useless since AE only can use 2GB no matter how many gigs you have.
I have an HD comp with 7 3D layers, 1 camera, 1 light. This is a precomp I’d like to use. It’s not complicated at all. Basically it is 2 1920×100 psd files, 1 720×480 psd, 4 solids, the camera & the light. With shadow cast enabled it cannot render a single frame. Turn off shadows & I can get through a second or so before failure. Restart another few frames & so it goes. Turns out I don’t like it without the shadows & now must keyframe back in the shadows. This turned an afternoon into 2 18 hour nightmares. I’m questioning AE as a HD tool. I don’t have the fastest machine but I think I have a decent machine. A Dell 4600 with 4 GB RAM.
If anyone can think of something I’m missing I’ll try anything. Right now I am looking at redesigning entire projects as I move forward to avoid lights & cameras. Adds a hell of a lot of work faking those things & they don’t look as good.
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I’ve had similar problems all week…RAM preview cuts short (only about 2-3 seconds of SD)…purge cache…then get the “must have 2 or more frames to preview”
Ran the apple hardware test looking for bad RAM…all clean.
Re-installed AE CS3, upgraded to 8.0.2, dumped all preferences…no dice.
Changed memory settings to %120/%50/2000…cleaned the database and cache…no luck.
I’m all out of ideas…anyone???
macpro dual 2.8 quad-core
10 GB ram
10.5.2
quicktime 7.4.5 -
Hey Dave,
I’ve just got a new machine and have exactly the same issues with the same setup.
Did you ever get a solution?
Its driving me nuts.
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Hey Dave,
I’ve just got a new machine and have exactly the same issues with the same setup.
Did you ever get a solution?
Its driving me nuts.
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Did anyone solve this problem?
I render my comps with render queue and some shots are just one frame of them for the duration of the shot. For examle a shot in the rendered movie is a still image, only the effects are animated (grain, movements ecc). And with RAM preview the same problems and sometimes it doesn’t render anything.
I hope you know the answer, I’m editing a short (1080p shots) I need to render it one of these days… I don’t know how!
Thank you!Fabrizio Rinaldi
http://www.linuz90.com
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