frame blending option for video clips

"Where is Feature X? I need Feature X! How can you not have Feature X?"
Zoltán
Team Resolume
Posts: 7088
Joined: Thu Jan 09, 2014 13:08
Location: Székesfehérvár, Hungary

frame blending option for video clips

Post by Zoltán »

I miss a simple and fast to use method to have slowed down video clips play smoothly.
I know and use the trails effect, but it is very hard to set up to affect only a few frames, and it needs readjustment on every playback speed (pitch) change.
Could it be made very simple, like a checkbox in the transport area?
Software developer, Sound Engineer,
Control Your show with ”Enter” - multiple Resolume servers at once - SMPTE/MTC column launch
try for free: http://programs.palffyzoltan.hu

DayVeeJay
Is seriously in love with Resolume. Met the parents and everything
Posts: 388
Joined: Mon Nov 05, 2007 23:38
Location: Chicago, IL

Re: frame blending option for video clips

Post by DayVeeJay »

+1

User avatar
drazkers
Wants to marry Resolume, and Resolume said "yes!"
Posts: 968
Joined: Wed May 18, 2011 10:54
Location: Brady V up in Canada

Re: frame blending option for video clips

Post by drazkers »

Frame blending normally takes alittle render time in after effects, I wonder how much CPU or GPU this would eat up.

DayVeeJay
Is seriously in love with Resolume. Met the parents and everything
Posts: 388
Joined: Mon Nov 05, 2007 23:38
Location: Chicago, IL

Re: frame blending option for video clips

Post by DayVeeJay »

There was an effect like this in the resolume 2.x days. Does anyone remember the name of it?

Joris
Doesn't Know Jack about VJ'ing or Software Development and Mostly Just Gets Coffee for Everyone
Posts: 5185
Joined: Fri May 22, 2009 11:38

Re: frame blending option for video clips

Post by Joris »

You can get a very cheap frame blend by showing previous frames at lower opacity when playing at speeds lower than 100%. So for instance, when playing at 30% speed, you would see the current frame at full opacity, the frame before that at 66%, and the frame before that at 33%. This is what FCP7 and Premiere do as well.

Personally I think it looks horrible, and I always turned it off during editing. You can get proper motion predictive frame interpolation in some editing packages these days, in which the software actually predicts how the frames in between should look based on pixel movement. But those type of effects are crazy CPU intensive.

If enough people want the cheapo blend, we could probably put it in.

User avatar
cosmowe
Knows Resolume better than the devs
Posts: 1597
Joined: Fri Mar 25, 2011 10:27
Location: cologne // germany

Re: frame blending option for video clips

Post by cosmowe »

+1 for a cheapo blend option ;)
Image Do you like outlines? Easy Outliner on Juicebar

User avatar
drazkers
Wants to marry Resolume, and Resolume said "yes!"
Posts: 968
Joined: Wed May 18, 2011 10:54
Location: Brady V up in Canada

Re: frame blending option for video clips

Post by drazkers »

So I render all my content at 60 or 90fps, it's simple in that you can slow things and still look smooth. Most people want it for bought content I assume tho.

DayVeeJay
Is seriously in love with Resolume. Met the parents and everything
Posts: 388
Joined: Mon Nov 05, 2007 23:38
Location: Chicago, IL

Re: frame blending option for video clips

Post by DayVeeJay »

If a 25fps clip was converted to 30 or 60fps would it be smoother?

mfo
Is seriously in love with Resolume. Met the parents and everything
Posts: 325
Joined: Fri Oct 08, 2004 11:48

Re: frame blending option for video clips

Post by mfo »

I maybe a few years too late, but: +1!

(I agree Joris, it sometimes looks stupid and does no good, but there are other situations where it makes a lot of sense. Like slowing down things that are moving soft anyways, e.g. cloud formations.)

visions
Is taking Resolume on a second date
Posts: 42
Joined: Tue Dec 08, 2009 13:56

Re: frame blending option for video clips

Post by visions »

DayVeeJay wrote: Wed Feb 11, 2015 15:33 If a 25fps clip was converted to 30 or 60fps would it be smoother?
Yes! You have to render it using "optical flow" option as frame interpolation mode in Premiere. In After Effects you have a similar interpolation option. And there are some plugins to do that even better (Twixtor Pro is one of them). And also there are some standalone tools (Topaz Video Enhace AI has a methtod to that do this job).
Of course it is not the same that a NATIVE 60fps video, but when you play it at half speed it is a huge difference, compared with the original 30fps one.

Post Reply