Inspiring

Answered

Should effects apply to Proxies?

Forum|Forum|7 years ago
February 13, 2019
6 replies
4600 views

Hi all,

My original footage is in H.264, 1920 x 1080, 60fps. I use alot of time remapping, warp stabilizer and basic color correction. All has been fine untill I applied some heavy color grading to a one minute long portion of the video to give it dramatic, almost unrealistic look. This is when Previews started taking really long time to render... One slight change to that color grading layer - another 20 minutes to render....

So I created proxy files in Ceneform codec with 1/4 or original resolution, original framerate. I activated proxy with that blue button. But nothing changed - Preview still takes forever to render!

So a big question here: do previews always apply to original files, regardless of proxy??? Then what's the point of using proxy? What's wrong here? Is my only choice to transcode to DNxHD without proxies?

This topic has been closed for replies.

Correct answer Trent Happel

For Proxy, functionality like Preview, Export and some effects apply to the Original/Full Res clips. Once you make Previews, it will display the Full Res clips. The only exception is if your Full Res are Offline and the Proxies are Online.

There are a number of other things to be aware of when working with Proxies. You can find more information on how Proxies work at: Adobe Premiere Pro Help | Ingest and Proxy Workflow in Adobe Premiere Pro CC

An excerpt from the Help doc regarding Preview with Proxy:

When you render Previews, Export Media or use certain Analysis effects (Warp Stabilizer, Rolling Shutter Repair, Morph Cut), Premiere Pro always uses and displays Full Res, regardless of the Toggle/Enable Proxies setting. The only exception is when you have Offline Full Res, but Proxy is Online, then Proxy is used.

Hope this helps.

Jeff Bugbee

Community Expert

Everyone here has good advice. Also, make sure your sequence settings match your source footage.

SpiritOnlineAuthor

Inspiring

Ok. So do you think I must update the CPU (plus RAM etc) or only graphics card will do it while leaving my i7 3770k ?

But anyway, why don't I see ANY improvement in playback when switching to uncompressed Cineform 1/4 of resolution ?

E

excited_Genie16B8

Legend

Cineform isn't Uncompressed.

Don't use 1/4 resolution playback with proxies. Set it to Full.

Use only the included Cineform presets when making proxies.

If it were me, I'd probably upgrade the CPU and GPU both. I'd also want at least 16 GB of RAM.

SpiritOnlineAuthor

Inspiring

Anyone, please ?

SpiritOnlineAuthor

Inspiring

Ok, I got some updates... So just to be sure, I re-created one of the proxy clips with watermark this time. Watermark is there when proxy button is blue. But the timeline became red after proxy file re-created. I hit Enter to render Preview, as soon as timeline became green, the proxy watermark disappeared, even though Proxy button is still blue! Does that mean Premiere replaces proxy with original files one Preview is generated?? This is so confusing!

When proxy is engaged, video still play choppy until I generate Preview, which takes very long time to render.

The effect that seems to cause the massive slow-down for me is Lumetri Color with Temperature set to -78 and in Creative tab, Look is set to "SD BLUE COLD". Are these particularly heavy effects or something? Please help me getting thorough this nightmare.

E

excited_Genie16B8

Legend

Does that mean Premiere replaces proxy with original files one Preview is generated?

Yes.

M

Meg The Dog

Inspiring

When you are creating a Preview, you are creating a new (temporary and impermanent) piece of media for Premiere Pro to work with during the playback process. Premiere always makes the Preview from the original source material at the full resolution. It then uses that newly created media clip for playback when called for. It does not make a proxy of this newly made clip.

spiritonline wrote
what's the point of using proxy? What's wrong here? Is my only choice to transcode to DNxHD without proxies?

As Jim_Simon points out, you would normally not need to use Preview files at all, as the lightweight proxies should allow Premiere to work in near real time.

MtD

SpiritOnlineAuthor

Inspiring

But nothing changed after I created proxy files and activated proxy with the little button turning it blue. Are there any other steps needed to make Premiere switch to proxy files? Right now in the source media window it shows proxy info next to each file (I activated displaying of proxy info there) and says "online".

M

Meg The Dog

Inspiring

It might be hard to see the difference between the proxy and the original depending how you have your editing workspace configured - if you are editing on a laptop, for example. It should be easier to see the difference the larger the Program Monitor is displayed, (or if, for example, the program monitor is feeding a client monitor).

When working with proxies, I add a tiny burn in of the clip name and clip timecode to the proxies in the ingest/create proxy preset so there is never any doubt which source we are seeing.

MtD

E

excited_Genie16B8

Legend

Do you need the previews? Even the Cineform proxies aren't playing in real time?

SpiritOnlineAuthor

Inspiring

Without previews all is red and plays very choppy or doesn't play at all. Same with proxies. No improvement whatsoever, same red line asking me to render previews, which takes very long time.

E

excited_Genie16B8

Legend

It is possible your pushing the effects past your system's real time capabilities, even with proxies. The effects you listed are intense.

Previews or new hardware might well be your only recourse.

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