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Analyzing On The Fly
To align two shots and calculate the alignment on the fly, do the following:
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Find two shots that are of the same scene, but have slightly different camera motion and foreground objects. Select Image > Read to load both these shots. |
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Select Furnace > F_Align. |
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Connect one of the shots to the source (Src) input of F_Align and the other to the reference (Ref) input. View the output from F_Align. |
The Src will be immediately repositioned so that it aligns to the Reference shot without any need for analysis.
You will see the following banner in the overlay:
No valid key framed analysis found. Analyzing during render.
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Depending on the exact difference between the two shots, you may need to enable the Scale and/or the Perspective toggles to get a decent alignment. |
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You may also need to reposition the Analysis Region depending on the differences in foreground detail. However, leaving it at the default position works well for most shots. |
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To see how closely the two clips have aligned, press M on the Node Graph to insert a Merge node. Connect the Merge node’s A input to F_Align and the B input to the reference image. View the output from the Merge node. Then, adjust the mix slider in the Merge controls to dissolve between F_Align’s output and the reference clip you wanted to match. |