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kfallsbob
Known Participant
April 24, 2015
Answered

Why does a 3 minute video take 6 to 8 hours to render?

  • April 24, 2015
  • 3 replies
  • 37326 views

New computer 16 Gig RAM, I7 processor, top of line graphics card NVIDIA  Gforce video card. Using 30 day trial.

Have followed the basic Adobe tutorial on rendering, but 8 hours for 3 minutes??? There has to be a better solution to rendering.

SSHD, Scratch disk on seperate hard drive

This topic has been closed for replies.
Correct answer SAFEHARBOR11

Maybe you missed my post yesterday suggesting you CONVERT the footage in GoPro Studio to an .avi file before editing? I've seen GoPro footage bring a monster dual-XEON workstation to it's knees. something about that format. The conversion software also has a "Remove Fisheye" checkbox that is often helpful when converting.

Also, why are you exporting at 24p? That will make motion look choppy, would go with at least the 29.97 myself and that will divide evenly into the 59.94 source.

Thanks

Jeff

3 replies

BartonGarrett256
BartonGarrett256
Inspiring
April 27, 2015

‌GoPro footage is difficult, at best.  I just rebuilt my i7 quad core into a 5960 8 core, 64 TB RAM, ASUS x99 with 8 striped 4 TB hard drives and a few SSDs, as well as two Nvidia cards, in part because I need to edit 1440 and 2160 GoPro footage with effects from time to time.  It was worse than multicam Red. It took 30 minutes to render a 60 second warp stabilized clip on my 'old' machine. 

I'm getting the new computer up to speed (CC still can't find reinstalled plugins, and it took a day to find, unlock then unhide files Windows locked when I copied parts of the old C-drive) hopefully the new computer will solve the GoPro problem.  I played with transcoding before editing but that seemed like a huge pain.  How anyone could do real editing of that stuff on a laptop is beyond me, and God forbid when 2160 (4k) is widespread...

K
kfallsbobAuthor
Known Participant
April 27, 2015

WOW!!!! Thanks for the input. I don't feel so bad now!

shooternz
shooternz
Legend
April 27, 2015

Well this is still a disappointing stat.

The same clip WITHOUT lens correction is 8 minutes!

Yikes.

K
kfallsbobAuthor
Known Participant
April 25, 2015

ok so I woke up at 4 AM and checked the progress and it had finally rendered. Took at least 8 hours.

So...I did some experiments this morning.

ALL THINGS BEING EQUAL I rendered and exported a 1 minute clip from my Canon 5D MK II in aproximately 5.5 minutes.

I then just attempted a render with no export of a GoPro raw 1 minute clip and the projection was 30 minutes so aborted.

I then ran the GoPro clip through the GoPro software and converted it. Same 30 minute render time

I then went the full process in the GoPro software and rendered and exported for You Tube 1080P which was the second smallest of my options other than 720P. Same time estimate....30 minutes.

So.....the issue here is the GoPro footage that PP is choking on. How can I make the GoPro footage more compatible with PP???

Bob

S
SAFEHARBOR11Correct answer
Participating Frequently
April 25, 2015

Maybe you missed my post yesterday suggesting you CONVERT the footage in GoPro Studio to an .avi file before editing? I've seen GoPro footage bring a monster dual-XEON workstation to it's knees. something about that format. The conversion software also has a "Remove Fisheye" checkbox that is often helpful when converting.

Also, why are you exporting at 24p? That will make motion look choppy, would go with at least the 29.97 myself and that will divide evenly into the 59.94 source.

Thanks

Jeff

K
kfallsbobAuthor
Known Participant
April 25, 2015

OK....I am getting to the bottom of this now.

Trying numerous combinations of FX and have determined that LENS CORRECTION is my main culprit.

A 1 min GoPro clip WITH Lens correction takes 25 min to render. The same clip WITHOUT lens correction is 8 minutes!

I am now rendering the same clip in Photoshop with lens correction only and it looks like it is also going to take 30 minutes.

I really want lens correction to eliminate the distortion but maybe I will have to live without it :-(

I think I am about as far as I can go on solving this mistery.

Unless you all have further suggestions on lens correction, I guess this is about as far as I can go.

Thank you all for your help and suggestions!

Bob

shooternz
shooternz
Legend
April 24, 2015

That's ridiculous no matter what!

What are your export settings , applied fx, source footage and some details on your sysyem set up woud be good to know.

K
kfallsbobAuthor
Known Participant
April 24, 2015

Source footage is GoPro video (Real Estate Photo shoot) and about 15 still photos from a Canon 5D MK ii plus a generic audio track. Haven't exported yet, just hit the RETURN key to start render.

I did, however, try the export to media last time and the render and export took about 10 hours.

S
SAFEHARBOR11
Participating Frequently
April 24, 2015

You still didn't tell us much, is this 4k footage or what? No reason it should take that long...unless settings are messed up. If you computer doesn't play well with the GoPro footage, run it through GoPro Studio software and convert to .avi before editing in Premiere.

Thanks

Jeff

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