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1. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
JSS1138 Jul 24, 2012 10:02 AM (in response to Cavemandude)Seems to be working fine for me. An effects heavy test took 2:32 to export without using Previews, and only :15 using them.
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2. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
Cavemandude Jul 24, 2012 11:52 AM (in response to JSS1138)You really need to test on a longer sequence, something that would take hours to render to make the preview files. Then export that sequence to a format like MPEG-2, basically something different from the Preview File format which is my case is DV AVI and see how long that takes. Even with the most complex effects, a 1-hour timeline should only take 10-15 minutes to convert to MPEG-2.
Randy
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3. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
JSS1138 Jul 24, 2012 12:32 PM (in response to Cavemandude)There is sufficient difference between the export times to show that they are being used when the box is checked, even on such a short test.
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4. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
Cavemandude Jul 24, 2012 1:27 PM (in response to JSS1138)I'm editing long-format projects and have thoroughly tested that it doesn't recognize the preview files in CS6. It could be that Premiere can't find the preview files with long-format projects for various reasons. It could be the number of preview files that messes it up, who knows. But a project that only takes a couple minutes to render and may only have one or two preview files may be something that CS6 can handle. My projects can have hundreds of preview files.
So, how many preview files does your project have?
I went back to CS5.5 and finished the project where the preview files worked.
If anyone else has a long-format project or a project with lots of preview files they want to test this on, I'd appreciate it.
Randy
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5. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
ExactImage Jul 24, 2012 1:28 PM (in response to JSS1138)Sorry to sidetrack this one a little, but what codec are you guys using for your previews, and do you have max quality etc set on the previews also? We tend not to use them, but I'm getting tired of 7-8 hour exports for things that used to take only 45 mins on FCP7 (because we'd rendered as we went along).
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6. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
Cavemandude Jul 24, 2012 1:47 PM (in response to ExactImage)I render as I edit also which is why the preview files are so important to me at the end when I want to export and not have to rerender everything.
I never use Max Quality since I have a (GTX 580) Cuda video card. Max Quality is for CPU rendering not GPU rendering and creates a lot of needless additional render time if you have a Cuda card.
I'm using the default DV codec which makes DV AVI files in the Preview folder. Too bad CS6 can't find them when I export. I'm lucky I kept CS5.5 installed.
Randy
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7. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
Cavemandude Jul 24, 2012 3:23 PM (in response to Cavemandude)Loaded another one of my projects that is 1 hour 45 minutes long. Tried previews on and off, match settings on and off. All export times were the same. Conclusion: CS6 not finding the preview files.
The way to tell whether it is finding the preview files in CS5.5 is that the hard drive light stays on constantly and the estimated remaining time comes up in about 15 seconds or in a much shorter time than if you weren't using the preview files. The longer the project and the more preview files you have, the longer it will take to make this estimation.
When that hard drive light is not constantly on and lights sporadically Premiere is ignoring the preview files and rerendering all the effects in the timeline, What I discovered is that if I stop the export and reboot my computer, load the project again and do an export, Premiere will find the Preview files. This method doesn't work in CS6 only CS5.5.
Randy
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8. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
Cavemandude Jul 26, 2012 1:27 AM (in response to Cavemandude)OK, decided to do a simple project and test the preview files. One HD AVCHD video clip, 24 minutes long. Dropped into a DV widescreen project and the video clip downscaled to match the project. Added a color correction filter, Shadow/Highlight filter and Sharpen filter. Cut the clip into 4 pieces and adjusted the color correction on each. This will generate 4 preview files. This is basically what my larger project involve but with many more video clips.
Did not render timeline or make any preview files then exported an MPEG-2 file. Took 35 minutes.
Rendered timeline which produced 4 preview files in the DV AVI format. Took 1 hour.
Exported an MPEG-2 file again but this time selected "Use Preview Files". Took 35 minutes.
Exported a DV AVI file (same format as the Preview files) but this time selected "Use Preview Files". Took 35 minutes.
Imported the 4 DV AVI preview files and put into a new sequence. Exported an MPEG-2 file using no preview files. Took 3 minutes.
Imported the 4 DV AVI preview files and put into a new sequence. Exported a DV AVI file using no preview files. Took 1 minute 30 seconds.
Randy
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9. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
shooternz Jul 26, 2012 2:11 AM (in response to Cavemandude)Just checking but ...Preview Files are exactly what the name states they are.
That is ..they are a lossy departure from the native files. (They are files rendered out with FX etc...that make playback easy on the system)
So ..is it your intention to use the quality loss ( hit) from the Preview files to create your export media?
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10. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
Cavemandude Jul 26, 2012 4:02 AM (in response to shooternz)Yes, this is for 8mm & 16mm film transfers and there is no difference visually when using or not using Preview files. When I edit film transfers, I'm rendering one reel at a time and checking it in the timeline at full playback speed. Once I get through editing all the film reels and since everything has been rendered, I then export to an MPEG-2 to load into Encore to make the final DVD.
I've used this method on 100's of 1000's of feet of film using Premiere CS5.5 and having the Preview files available to use when exporting has saved me 100's of hours of rendering.
Randy
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11. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
reToolednet Jul 26, 2012 11:17 AM (in response to Cavemandude)shootemz, I don't think that preview files NEED to be lossy files ONLY used for previews. In fact you can set them to something like uncompressed 10 bit, which would make them not lossy at all, and in fact totally suitable for speeding up a final export.
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12. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
JSS1138 Jul 26, 2012 2:45 PM (in response to reToolednet)And in my case, they do.
Are you using QuickTime at all here? My understanding is that because of QuickTime's 32 bit nature and the "band-aid" Adobe uses to handle them in a 64 bit environment, you can't do a direct file copy form QT to QT, you have to go through the encoder.
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13. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
reToolednet Jul 26, 2012 2:53 PM (in response to JSS1138)The lack of copy is not related to 64 bit vs 32 bit (as far as I know), but in fact limited to lack of something calls "smart render". Only a few very specific codecs let you smart render, i.e. pass your initial source, let's say prores directly into the final prores export without reencoding. Of course, prores, IS NOT one of those supported formats.
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14. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
ExactImage Jul 26, 2012 2:55 PM (in response to reToolednet)reToolednet wrote:
The lack of copy is not related to 64 bit vs 32 bit (as far as I know), but in fact limited to lack of something calls "smart render". Only a few very specific codecs let you smart render, i.e. pass your initial source, let's say prores directly into the final prores export without reencoding. Of course, prores, IS NOT one of those supported formats.
Do you know which ones are? Or perhaps have a link to such information?
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15. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
reToolednet Jul 26, 2012 2:59 PM (in response to ExactImage)Some of them are mentioned here:
But not sure where to get a full list.
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16. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
reToolednet Jul 26, 2012 3:00 PM (in response to reToolednet)Also, to contribute to the original poster's question, Use Previews DOES work for ME in CS6, despite NOT working in CS 5.5. However, I have heard from others that it doesn't work on their systems either. Definitely an area that needs improvement to improve export times. Perhaps a true background rendering system would really speed up final exports when combined with this as well.
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17. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
JSS1138 Jul 26, 2012 6:51 PM (in response to reToolednet)The lack of copy is not related to 64 bit vs 32 bit
I do believe it is directly related to using the QuickTime container, which is a 32 bit process running in a 64 bit environment. Using AVI (such as DV, Uncompressed, Lagarith or UT) doesn't have this issue.
Smart rendering is something else entirely. This is where only changed frames are 'rendered', and any unchanged frames are simply copied. PP has just received it's very first "smart rendering" capabilities, as that feature is widely defined. "Smart rendering" is unrelated to "using preview files".
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18. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
reToolednet Jul 26, 2012 7:40 PM (in response to JSS1138)Right this is unrelated but plays into the greater discussion of export times. Regardless quick times and use previews do work for me. But on a Mac.
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19. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
Cavemandude Jul 27, 2012 9:19 AM (in response to JSS1138)Like I've already stated in earlier posts, preview files work in CS5.5, no problems except for the occasional hang up when I have to reboot when it won't find the preview files and I know how to detect this. I'm using a PC, no QuickTime is involved, and using DV AVI files only for preview files. Preview files sometimes don't work in CS5.5 if you don't know how to trigger the preview files to work. Problem is there is no way I have found to trigger the preview files to work in CS6. I could care less about smart rendering since it has nothing to do with the topic at hand.
I think it comes down to a lot of people commenting on this topic just don't understand how it works or they think it works on their system when it really doesn't. The bulk of my editing work revolves around using preview files and most people don't use this method for various reasons.
Randy
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20. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
JSS1138 Jul 27, 2012 9:34 AM (in response to Cavemandude)Preview files sometimes don't work in CS5.5 if you don't know how to trigger the preview files to work.
Right there I'd say this is a local issue. There is no "trigger" required other than the Use Preview Files checkbox.
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21. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
Cavemandude Jul 27, 2012 10:11 AM (in response to JSS1138)Sounds like the typical Adobe employee response on the local issue. I say "trigger" since that was my own discovery on how to make it work in CS5.5. Most people just assumed there was no way to get preview files to work in CS5.5 and gave up on it.
Now CS6 has improved the playback when using render-intensive filters almost to the point where I can bypass "rendering as I go" and simply would export the MPEG-2 file a the end of the edit but with the CS6 Encore chapter marker inaccuracy problem compared to Encore CS5.1 that's a no go. Of course, my Encore problem I'm sure is a local issue also, right?
Back to CS5.5 and will be waiting for CS6.1 to retest everything.
Randy
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22. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
JSS1138 Jul 27, 2012 1:47 PM (in response to Cavemandude)Again, excepting the QuickTime issue, there is nothing you have ever needed to do to "make it work" other than check the box. If it ever hasn't worked for you, then something is probably wrong with your installation.
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23. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
Cavemandude Jul 27, 2012 1:57 PM (in response to JSS1138)So you're say that there are no bugs in Adobe CS6 and if anything doesn't work correctly it is due to something wrong with the installation?
One thing you can check off as not being the problem is my PC setup since I also have Premiere CS5.5 installed and the preview files work there.
Randy
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24. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
Cavemandude Jul 27, 2012 2:52 PM (in response to Cavemandude)Solved it.
This had nothing to do with my installation or my PC setup and should affect most (I'll explain that later) people that use Premiere CS6 since you have to change a setting in Premiere beyond just clicking on the "Use Preview Files" box and should be added to the instruction manual. People that are saying it worked just happened to have this setting already on or off depending on how you look at it. Want a hint?
I'll have to try this with CS5.5 also since I know how to make it work or not work in 5.5 but I'll try this also since it wouldn't require a reboot.
This is why I hate when people post that you need to reinstall your software which in itself can cause new problems that were never there with the first installation.
Randy
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25. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
reToolednet Jul 27, 2012 2:56 PM (in response to Cavemandude)Please do share Randy.
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26. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
shooternz Jul 27, 2012 2:59 PM (in response to Cavemandude)You solved it...YAY...so why keep it a secret from those that tried to help... or others that may need the info ?
Get with the community spirit thing.
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27. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
JSS1138 Jul 27, 2012 7:59 PM (in response to Cavemandude)So you're say that there are no bugs in Adobe CS6 and if anything doesn't work correctly it is due to something wrong with the installation?
Not at all. I'm saying that it works just fine for me, and always has, so it's not likely a bug.
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28. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
muzflowers Aug 21, 2012 12:25 PM (in response to Cavemandude)Same issue.
Randy, please share workaround.
Can't do warp stabilizer with synthese edge withous worked 'use preview files' in CS6.
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29. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
Stanley Arthur Aug 30, 2012 7:44 AM (in response to muzflowers)Wow. Bad form, dude. I need this answer. I'm in a situation where I cannot use Beauty Box without the ability to make short preview files and use them during export, due to the fact that any sequence longer than 2-3 minutes will not fully render using Beauty Box without just freezing and quitting. You are 100% correct that this checkbox does not work by default. So now begins my search in preferences to figure this out. Glad you solved it. Sad that someone here would have offended you to the point of not sharing with the majority of good-natured folk here. It's also kind of sad that an Adobe emp. would not read this and figure it out for those of us who are ham-stringed by this nonsense.
I appeal to your better nature and ask that you post the solution.
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30. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
JSS1138 Aug 30, 2012 9:52 AM (in response to Stanley Arthur)I suspect the solution never came because there just is no other setting beyond the checkbox to make this work (assuming no QuickTime is involved).
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31. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
reToolednet Aug 30, 2012 9:51 AM (in response to JSS1138)It happens to work for me too, but it Didn't work for me in CS 5.5, so maybe a preference, maybe a mac pc thing, who knows...other than the guy who has solved it....
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32. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
Keith_Clark Aug 30, 2012 9:54 AM (in response to Stanley Arthur)i don't use preview export myself, but i add in a vote for 'share the solution'
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33. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
Cavemandude Aug 31, 2012 10:19 AM (in response to Keith_Clark)Just to preface, I live in Baton Rouge, LA and have been dealing with Hurricane Isaac since Tuesday.
I'm using an NVIDIA GTX 580 video card. If you also have a Mercury Engine (Cuda) approved video card, do all of your regular editing and rendering using the GPU Acceleration Renderer on. Once you are done editing and want to export the timeline using these preview files, open up the Project Settings menu (I made a keyboard shortcut to open this) and select Software Only as the Renderer and select Keep Preview Files when prompted. Go to Export Media, check the Use Preview Files (No Max Quality settings) and you should be good to go. To test it, just turn the Renderer on and off between GPU and Software Only before exporting.
I've done this on 15 or so film transfer and video projects that have been 2-3 hours long and it has not failed once.
It's a bug, smash it.
Randy
P.S. The inaccurate chapter points (consistently around 20 frames too early) that Premiere CS6 produces for Encore are still bugging the hell out of me. Works perfect in CS5.5. I started a thread about this issue also with no solution at this point.
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34. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
muzflowers Aug 31, 2012 11:01 AM (in response to Cavemandude)Not work in my case.
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35. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
Cavemandude Aug 31, 2012 11:08 AM (in response to muzflowers)Just to add, I'm using DV as my preview files and exporting from a DV project.
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36. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
Stanley Arthur Sep 4, 2012 11:06 AM (in response to Cavemandude)Well Dude, I concur. This has worked for me. I just took a 30 minute 1080p sequence loaded with a mixture of stills with motion, clips with warp stabilizer, color correction and linked After Effects comps and rendered the entire work area, giving me a green line from what had been a mixture of yellow and red. The render didn't take as long as I expected, so that was nice. Then, at your suggestion, I disabled GPU acceleration and clicked "use previews" while exporting to MPEG-2 DVD with "Match Source Attributes (High Quality). The resulting export of a 30 minute sequence was about 10 minutes. For the record, my preview files are Matrox MPEG-2 I-frame at 100 Mbps which, to my eye, are outstanding and run slick as snot on my Z800 using the Matrox MXO2 MAX LE.
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37. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
Cavemandude Sep 4, 2012 6:27 PM (in response to Stanley Arthur)Wonder if this a PC bug only. I'm using a PC, no Mac to test it.
Randy
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38. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
Cavemandude Sep 6, 2012 3:50 PM (in response to Cavemandude)The latest 6.0.2 update does not fix this problem.
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39. Re: "Use Preview Files" works in CS5.5 but is "Useless" in CS6
muzflowers Oct 3, 2012 1:19 PM (in response to Cavemandude)6.0.3 update does not fix this problem too.




