Vegas 15 4K performance issues

JoeAustin wrote on 9/28/2018, 8:59 AM

Howdy folks. Been a long time user of Vegas Pro, and even though I've tried other platforms, I still prefer the Vegas interface. I'm starting to wonder if it might be time to move on. I've had 4K capable cameras for a while, but have only now really started to make use of it. Naturally, I create proxies, as 4K footage straight from the GH5 is a slide show otherwise. Even using proxy files, frame rate is around 13 fps with no effects on a 24P video. Have to drop quality to less than full draft to get 24FPS. My rig has a I7 4790K processor with a R9 380 on Win 10 Pro with VP15 361. Final render took around 20 minutes for a 2 minute clip.

I'd messed with Resolve off and on, and decided to try the same footage. 24FPS timeline playback worked fine. I didn't create proxies, as I have little idea what I'm doing in Resolve. Maybe it does this in background? Anyway, I was able to knock together the same clips pretty quickly, and render time was around 3.5 minutes.

Clearly, my hardware is adequate. Maybe I'm missing something in the Vegas config? Not sure what else to do, but at least for 4K production, it looks as if I may have to use a different NLE.

 

 

 

Comments

RogerS wrote on 9/28/2018, 9:01 AM

Is the GPU enabled in preferences? If not it might be a Socompound issue.

Kinvermark wrote on 9/28/2018, 9:13 AM

Doesn't make any sense to me - should be getting better performance than what you describe. What are the specs of the proxies you create? If you put gh5 UHD 24p (8 bit) clips on the timeline (no fx or transitions) and press play, do you get good playback?

My testing of GH5 footage in Vegas 15 & 16 found better play back with the old decoder rather than the so4compoundplug.dll.

(PS If you are using 10 bit gh5 files, or are in 32 bit project mode, then yes you will have problems in Vegas.)

JoeAustin wrote on 9/28/2018, 9:13 AM

GPU acceleration is enabled in preferences.

JoeAustin wrote on 9/28/2018, 9:18 AM

Did try disabling SO4, and the framerate is the same. ~14 to 15 fps in full preview res.

JoeAustin wrote on 9/28/2018, 9:22 AM

Doesn't make any sense to me - should be getting better performance than what you describe. What are the specs of the proxies you create? If you put gh5 UHD 24p (8 bit) clips on the timeline (no fx or transitions) and press play, do you get good playback?

This is just the 8bit default UHD. The proxy is just the default created by Vegas. I know you can tell Vegas where to put it, but not aware of actual codec/bitrate options?

Kinvermark wrote on 9/28/2018, 9:30 AM

Looks to me like something is wrong with your install. Maybe it's using the intel graphics? (Wild guess, I have no idea).

I am using an 8 year old PC (see signature) and can get Best/full playback of a basic 24p UHD timeline with full fps except for occasional drops at event boundaries. Adding edits, fx, transitions, etc is a different matter, and for that I change to preview-auto (still no proxies) which looks & plays fine considering the footage is UHD and the preview is quite large.

You're not using a 32 bit project are you?

JoeAustin wrote on 9/28/2018, 9:53 AM

 

You're not using a 32 bit project are you?

Aha! I switched to 32 bit before rendering HD to MP4 on a previous project, as it's the only way to get the gamma right. I set this to the default apparently for some reason, and just forgot. Timeline UHD playback is now what it should be.

Thanks!

Kinvermark wrote on 9/28/2018, 10:03 AM

Great! No need to "move on." Makes sense: 8 bit mode for fluid editing; 32 bit for colour grading (if needed) and rendering (if needed). This will likely be what users will have to do to get HDR workflows to perform adequately.