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Output only screen graphic alpha to color tab in DaVinci Resolve


Tom Evans

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I have done a screen replacement and fed the screen graphics straight into the planar tracker. So, the node three looks has the phone fed into the background of the planar tracker, the graphics fed into the foreground of the planar tracker, and the planar tracker itself is fed into the media out node. With this setup, how can I output ONLY the screen graphic to the color tab? As I see it, the planar tracker works as a "merge" in this case so I don't understand how to output only the graphics.
 

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4 hours ago, Tom Evans said:

I have done a screen replacement and fed the screen graphics straight into the planar tracker. So, the node three looks has the phone fed into the background of the planar tracker, the graphics fed into the foreground of the planar tracker, and the planar tracker itself is fed into the media out node. With this setup, how can I output ONLY the screen graphic to the color tab? As I see it, the planar tracker works as a "merge" in this case so I don't understand how to output only the graphics.
 

The Planar Tracker does work like a Merge,  but you can apply the planar deformation with a Planar Transform node separately. Connect the graphic to the Planar Transform, and set the Planar Transform's Track Spline parameter to the planar tracker track. The Planar Tracker can be left as its own branch and does not have to be connected to the MediaOut.

In general, I apply tracking data outside the Tracker or Planar Tracker and do not use those nodes to undertake the actual merge.

Edited by Lee Lanier
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(edited)

Hi Lee. I know I can do it with the Planar Transform, but the questions is if I can output the screen only with my setup that is not using the Planar Transform. Using the planar transform method isn't a good method to do planar tracking inside of Resolve I think because you will have to deal with differences in resolution in your source clips and the graphics.

Edited by Tom Evans
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