Handling GIF ghosting

urednik · 04-05-2021, 08:29 AM

Hello, how do we match fps from gif's in order for them not to be ghosting (lagging)?

jrk · 04-06-2021, 01:32 AM

Source properties?
Should tell you the fps for a gif.

I guess if your frame rate is an integer multiple of this, you shouldn't have a problem?

urednik · 04-06-2021, 05:21 AM

In theory yes, but I match them, match with project settings, render settings, put the file at the start od the first frame and it does not work - it is ghosting (overlapping frames).

jrk · 04-06-2021, 09:05 AM

... perhaps you could post an example of a gif that shows the issue?

urednik · 04-06-2021, 01:46 PM

Here it is attached, it should display like here: https://www.animatedimages.org/data/...image-0008.gif
The gif is at 3,60 FPS
whereas one gif that displays correctly is at 6.67 fps, and it renders fine on all FPS render settings. So it is something else I got wrong I guess.

jrk · 04-07-2021, 01:11 AM

OK, the issue seems to be the background transparency. Nothing to do with frame rate.

urednik · 04-07-2021, 06:01 AM

Thank you - so what can I do to make it work?
Beacuse it plays wrong without any settings changed.

JamesPeters · 04-07-2021, 11:17 AM

You'll need to use the video processor preset called "Image overlay" on the track with the GIF. Then from the video window click "options", "video item properties", then choose "preserve GIF transparency". (Alternately you can get to the same dialog by double-clicking on the GIF item and choosing "properties" near the bottom.) Frames will be "disposed of" properly as GIF animates.

If it's a GIF with a transparent background, turn alpha channel to 1 in that video processor preset. (In this case you'll need a background image/video "beneath" the GIF though, on another track.)

urednik · 04-07-2021, 01:03 PM

Oh thanks, that worked.

jrk · 04-07-2021, 01:04 PM

Quote:

Originally Posted by JamesPeters

If it's a GIF with a transparent background, turn alpha channel to 0 in that video processor preset.

or 1?

JamesPeters · 04-07-2021, 01:21 PM

Quote:

Originally Posted by jrk

or 1?

Correct.

04-05-2021, 08:29 AM	#1
urednik Human being with feelings Join Date: Apr 2010 Posts: 1,247	Handling GIF ghosting Hello, how do we match fps from gif's in order for them not to be ghosting (lagging)? __________________ W10 (64) Lenovo E540 - SSD; Lenovo B590; W7 (32), Compaq 610 (2.1Ghz core 2 duo, L2 cache, 2GB RAM); DPA 4018, Schoeps MK2, Schoeps MTSC 64, Neumann mk184, AEA Ribbon 88mk, AKG SolidTUBE; Focusrite Scarlett 18i20, recording merely live acoustic music.

04-06-2021, 01:32 AM	#2
jrk Human being with feelings Join Date: Aug 2015 Posts: 2,969	Source properties? Should tell you the fps for a gif. I guess if your frame rate is an integer multiple of this, you shouldn't have a problem? __________________ it's meant to sound like that...

04-06-2021, 05:21 AM	#3
urednik Human being with feelings Join Date: Apr 2010 Posts: 1,247	In theory yes, but I match them, match with project settings, render settings, put the file at the start od the first frame and it does not work - it is ghosting (overlapping frames). __________________ W10 (64) Lenovo E540 - SSD; Lenovo B590; W7 (32), Compaq 610 (2.1Ghz core 2 duo, L2 cache, 2GB RAM); DPA 4018, Schoeps MK2, Schoeps MTSC 64, Neumann mk184, AEA Ribbon 88mk, AKG SolidTUBE; Focusrite Scarlett 18i20, recording merely live acoustic music.

04-06-2021, 09:05 AM	#4
jrk Human being with feelings Join Date: Aug 2015 Posts: 2,969	... perhaps you could post an example of a gif that shows the issue? __________________ it's meant to sound like that...

04-07-2021, 01:11 AM	#6
jrk Human being with feelings Join Date: Aug 2015 Posts: 2,969	OK, the issue seems to be the background transparency. Nothing to do with frame rate. __________________ it's meant to sound like that...

04-07-2021, 06:01 AM	#7
urednik Human being with feelings Join Date: Apr 2010 Posts: 1,247	Thank you - so what can I do to make it work? Beacuse it plays wrong without any settings changed. __________________ W10 (64) Lenovo E540 - SSD; Lenovo B590; W7 (32), Compaq 610 (2.1Ghz core 2 duo, L2 cache, 2GB RAM); DPA 4018, Schoeps MK2, Schoeps MTSC 64, Neumann mk184, AEA Ribbon 88mk, AKG SolidTUBE; Focusrite Scarlett 18i20, recording merely live acoustic music.

04-07-2021, 11:17 AM	#8
JamesPeters Human being with feelings Join Date: Aug 2011 Location: Near a big lake Posts: 3,943	You'll need to use the video processor preset called "Image overlay" on the track with the GIF. Then from the video window click "options", "video item properties", then choose "preserve GIF transparency". (Alternately you can get to the same dialog by double-clicking on the GIF item and choosing "properties" near the bottom.) Frames will be "disposed of" properly as GIF animates. If it's a GIF with a transparent background, turn alpha channel to 1 in that video processor preset. (In this case you'll need a background image/video "beneath" the GIF though, on another track.) Last edited by JamesPeters; 04-07-2021 at 01:20 PM.

04-07-2021, 01:03 PM	#9
urednik Human being with feelings Join Date: Apr 2010 Posts: 1,247	Oh thanks, that worked. __________________ W10 (64) Lenovo E540 - SSD; Lenovo B590; W7 (32), Compaq 610 (2.1Ghz core 2 duo, L2 cache, 2GB RAM); DPA 4018, Schoeps MK2, Schoeps MTSC 64, Neumann mk184, AEA Ribbon 88mk, AKG SolidTUBE; Focusrite Scarlett 18i20, recording merely live acoustic music. Last edited by urednik; 04-08-2021 at 12:08 AM.

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