-
Great computer, with preview lag??
Hi all,
I thought my new build could handle anything, especially Vegas, but I guess not…
When I add effects to my footage, (saturation, sharpen, color corrector), I get preview lag under “Best (Full)”. Why is this happening?
I have a very beefy set up.
Intel i7 4770k (Overclocked to 4.6 Ghz)
16GB of DDR3 Ram
Nvidia Gigabyte GTX 770Any help would be appreciated. Thank you!
-Rich
-
6 Replies
-
That’s why we have the option to drop the Previewing quality. If it wasn’t there, then we’d have to wait for that Event to render first. So, your choices, as are mine: Prerender/Build RAM Preview or drop Preview quality. Dealing with additional functions onto an Event increases the amount if maths being done. You could also explore those FXs that utilise GPU acceleration.
Cheers
Grazie
Video Content Creator and Potter
PC 7 64-bit 16gb * Intel® Core™i7-2600k Quad Core 3.40GHz * 2GB NVIDIA GEFORCE GTX 560 Ti
Cameras: Canon XF300 + PowerShot SX50HS Bridge -
Thanks for your reply Graham.
I’m aware that one can lower the preview quality, but I just don’t understand why I have to with such hardware. I built this computer specifically for heavy tasks, such as video editing.
I have found a “light” fix. I enabled GPU acceleration under Options > Preferences > Video, and that helped a bit. However, I tried that before and Vegas would crash on start. It is a bit more stable now and the preview is smooth with “Best”, but Vegas still crashes sometimes :
I really don’t understand what could be the problem.
Cheers
-Rich
-
It doesn’t matter how “Beefy” your computer is Thomas.
Once you add filters/Effects to your footage on the timeline
its still gonna Lag to some extent, that is expected.
There is nothing to be confused about!Steve Rhoden
(Cow Leader)
Film Editor & Compositor.
Filmex Creative Media.
https://www.facebook.com/FilmexCreativeMedia
1-876-832-4956 -
I’ve been using Vegas from VV3 up to and including VP12.
What Vegas does is to allow us access to our ideas directly/urgently at the Timeline. Yes, other NLEs do do this of course, but they take time and PC grunt to render to Previewing files. What Vegas has done is to get the most use of the up-front ease that it is known for, and given us the power to either elect to spend important creative time on prerender Previewing files or, not. I’m picking up you’re in that realisation period of discovering just where you fit in your workflow to adapt to Vegas’s offer to allow US to decide: Previewing Full Frame Rate OR not.
Both Steve and I have responded to invite you to think in this way too. And I reiterate: Vegas has the options to view Previewing under various qualities. These options are there so you can achieve fuller or BETTER frame rates.
Now, you can make the choices here, this is what and why I make use of:
A] Build RAM Previews – SHIFT+B
Pros: Fast to appear and great for a creative quick N Dirty view of your ideas!
Cons: Volatile ( they don’t remain after a change on the Timeline!); takes up RAM.B] PreRender Files – SHIFT+M
Pros: Written to HARD DRIVE and DON’T remove from RAM usage
Cons: Also volatileC] Render To New Track – CTRL+M
Pros: Permanent Record of a render available for ongoing editing. I use these a lot.
Cons: Takes the full time that the selected Render template you use; unless using “another” script these will dupe your Audio too – PITA!D] Adjusting the ACTUAL Preview Quality – Icon on Preview Screen.
Pros: Ability to reduce quality on the go to establish just where the FPS versus FX application might be; Auto Adjust to optimum one of the best work-a-day features -there SHOULD be a KeyStroke for ON and OFF for this feature.
Cons: None, other than it needs to be more intelligent to the needs of the PC and the FXs being used. This could be the place where the GPU and CPU FX-ing stream could be audited in a better precise way – but, hey-ho we DO have it at least!E] GPU Acceleration – hmmm…. I’ll leave this to others . . .
F] DIs – or Digital Intermediaries
G] FrameServer – This is Satish Kumar’s much used . . er . . Frame Server. I have used this in the past and I must now get busy again with it. I’ve used it in VP8 (?) and found it valuable.
OK . . . You asked twice as to, and here I para-phrase “What’s the problem?” – well, in outlining the options I and what Vegas provides to help me with, the REAL issue is the programming and the math used to make all of this available to us and the EASE with which Vegas provides for the editor. On the face of it, there’s nothing wrong with your PC. There’s nothing wrong with Vegas. What you/we/others do is to match what Vegas CAN provide and to the reasons WHY these functions have been made available to us – and the crucial reasoning behind why we have those various Previewing alternatives.
So, unless your PC is being hobbled by some fundamental choking, then you most probably got the best setup you can work/deal with.
Problem? If there is a “Problem”, it’s about balance and compromise: Features<>FPS<>Creative-Time. And you know what? This has ALWAYS been the Problem! LOL!
I really hope that helps you.
Cheers
Grazie
Video Content Creator and Potter
PC 7 64-bit 16gb * Intel® Core™i7-2600k Quad Core 3.40GHz * 2GB NVIDIA GEFORCE GTX 560 Ti
Cameras: Canon XF300 + PowerShot SX50HS Bridge -
Thanks for your replies and sorry for not answering earlier.
Graham your post was very detailed, thanks for taking the time.
I’ve also been using the RAM preview method (Shift + B) since Vegas 9 – so it’s nothing new to me.
However, as you know one has to always wait a few seconds and the preview is gone as soon as you start working again on the timeline.
I had really hoped that with my PC I’d be able to do continuous editing with the “Best” preview, and have no lag.
What I have concluded until now:
1) With GPU acceleration off, my processor has a load of barely 50% when editing videos.. which is strange. It’s as if it’s being choked or bottle necked by something.
2) With GPU acceleration on, I can edit videos with “Best” as long as there is no video under it on another track. It will play just fine at 24 or 29FPS.
However, as everyone knows.. GPU acceleration is extremely unstable and badly implemented in Sony Vegas, at least for non-Quadro cards. Vegas keeps crashing every 5 minutes with GPU Acc. enabled.
Can’t seem to really find a fix for that.
-
[Thomas Richards] “Can’t seem to really find a fix for that.”
_______________________________________________________________
I’m recognising I’m presently hovering between Stage 3 and 4 in the “Five Stages of Grief”! – I’ve known this “relative” since VegasVideo 3. And the ever-so stable VV5. Mind you, VideoFactory was my “Road to Damascus” or my “Andy Sipowicz” moment.
Cheers
Grazie
Video Content Creator and Potter
PC 7 64-bit 16gb * Intel® Core™i7-2600k Quad Core 3.40GHz * 2GB NVIDIA GEFORCE GTX 560 Ti
Cameras: Canon XF300 + PowerShot SX50HS Bridge
Reply to this Discussion! Login or Sign Up