Tracking Data Question

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MarkEsper

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Tracking Data Question

PostTue Mar 13, 2018 6:52 am

Hi

I have a rail shot which tracks left to right. It's a long shot of a guy leaning against a wall, positioned on the right of the frame. It was a bit bouncy and the Resolve stabilise module smoothed it beautifully.

The wall's back ground is made up of graffiti. I want to fade up a company logo on the wall. I brought in a Photoshop file with an alpha channel and changed the blending mode to screen so that it shows the logo together with the texture of the wall.

I created a rectangular power window where the logo needs to go and that tracks fine. However the targa file doesn't stay within the tracked rectangular power window. How can I get it to adhere to the power window's tracking data? I tried pasting the tracking data on the targa file but Resolve won't have it.

Any suggestions please? Thanks.
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Hector Berrebi

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Re: Tracking Data Question

PostWed Mar 14, 2018 6:14 am

Hey Mark

I don't think you can achieve this with an Ext Matte (I'm going to check this later again out of curiosity)

The Match Move OFX could have been your friend here.. but it still doesn't support alpha properly nor it has Screen blending

You can try doing it using 2 layers (timeline tracks)

1. On tracked shot (layer 1) - Use point in classic stabilizer. Strong on 100. (do it on an ungraded version)
2. In gallery right click and select Apply Grades using: Keyframes Aligning Start frames..
3. Grab a still
4. On target shot (layer 2) - apply grade.
6. In stabilizer make Strong -100, then hit stabilize.
7. Don't forget to bring back right version on layer 1
H e c t o r _ B e r r e b i
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Marc Wielage

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Re: Tracking Data Question

PostThu Mar 15, 2018 4:30 am

Call me crazy, but I'd do this in Fusion or After Effects. I think there is some VFX compositing you can do to a point in Resolve, but it's still not ideal. It will work in a pinch, and I think it's amazingly good for what is essentially a color-correction program, but it's not going to be as accurate as using (say) Mocha Pro.
marc wielage, csi • VP/color & workflow • chroma | hollywood
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MarkEsper

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Re: Tracking Data Question

PostMon Apr 09, 2018 6:45 am

Thanks guys,

In the end I did it in After Effects. The result was pretty much ok but I still have the feeling that tracker in Davinci is better. I tracked the area using a rectangular power window and it seemed to hold the logo better in place than AE.

Since this project I've upgraded to Resolve Studio so, I'm going to give the Match Move OFX a go.

All the best,

Mark.
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Sam Steti

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Re: Tracking Data Question

PostMon Apr 09, 2018 7:30 am

Hey,
The "- 100" trick Hector gave you is the classic way to achieve it and you could have done it this way, regardless to the use of point or rectangular PW to track...
But Mark is right too, because if you ever try Fusion (or Mocha too in this example), you hardly come back even for an easy stuff.

In the end, I think it should be properly done in Resolve.
Legacy MacPro 8core Xeons, 32 Go ram, 2 x gtx 980 ti, 1SSD for system, 2 SSDs raid0 for footage and caches, OSX ElCap and Sierra, Resolve 15 Studio
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Hector Berrebi

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Re: Tracking Data Question

PostMon Apr 09, 2018 3:02 pm

Sam Steti wrote:In the end, I think it should be properly done in Resolve.


And from all we know right now... in about one hour it will probably be a completely different game.
And out of the 250 Fusion effects added I'm quite confident this will be included.

Happy Upgrade to us all :)
H e c t o r _ B e r r e b i
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Sam Steti

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Re: Tracking Data Question

PostMon Apr 09, 2018 3:27 pm

Yes, but it could be before too :evil:

:lol:
Legacy MacPro 8core Xeons, 32 Go ram, 2 x gtx 980 ti, 1SSD for system, 2 SSDs raid0 for footage and caches, OSX ElCap and Sierra, Resolve 15 Studio

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