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3DEqualizer/Maya/Nuke workflow
Applying the grid to the scene
In this video I demonstrate how to add a grid to the scene before I export the scene to Maya to facilitate the tracking.
Points have been previously tracked using the system learned during the first weeks. I show the process in another video further down below .
Exporting from 3DE
- Track at least 30 marks
- Once the tracking is done Calc from scratch
- Add distances and allign to XZ and to origin
- Apply the grid
- Bake scene
- Export the lens
Creating lens distorted footage for Maya
- Add blackoutside node
- Import lens
- Add reformat node, change to scale and modify value to 1.1
- Change resize value to none
- Write node to create the sequence
Creating image sequence
- Apply timeoffset, set it one frame before the actual footage, in my case 1000 because footage started at 1001
- Write node and click on the file folder, select the raw folder as destination and add to the name of the file the extension "%04d" which refers to the numeric unit that we are going to use (in this case we are in the thousands, frames go from 1001 to 1286)
- Add jpg as extension for the file
- Click on render
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Importing to Maya using MEL
- Select the script editor at the bottom right
- Open the MEL script and run
- Parent ImagePlane to the generated camera
- In the ImagePlaneShape select the folder icon and open the first file, tick the UseImageSequence voice
- Modify size adding =(number)*1.1
- Select the camera and modify camera aperture following the same system
- Select view, imageplane, imageplaneattributes, imageplaneshape and change timeoffset to 1 frame before the beginning of the actual footage
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Importing the model
- Importing the model previously created
- Scale to fit the camera, paying attention not to move the camera imported
- Place lights in the scene
- Looking through the imported camera select imageplaneshape and change display mode to none
- Open the render options, modify to desired
- Add render passes, also make sure to render all passes together
- Select render sequence
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Merge footage to backplate
- Import rendered object and footage
- Add timeoffset to object
- Add a reformat node
- Add the lens
- Merge object to footage
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Removing markers
- Bring in a track node to attach to the footage
- Place the tracking box on the marker
- Track forward
- Go back to first frame and change transform to match move 1pt
- Press on set to current frame, paying attention to be on the first frame
- Bring in rotopaint node, add a layer and import the translate and center value from the track to the rotopaint
- Select the clone brush and cover the marker
- Change lifetime to all frames
Here an example of the footage before and after I removed the markers
Roto the extra parts off the model
- Bring in a track node to attach to the footage
- Place the tracking box on the marker
- Track forward
- Go back to first frame and change transform to match move 1pt
- Press on set to current frame, paying attention to be on the first frame
- Bring in roto node, select the bezier to create a mask
- Manually check that the roto follows the object frame by frame and adjust accordingly.
- Add blur node, connect to a copy node. Connect to a premult node and place the track right after it.
Grading the object
- Add a grade node. Change RGB to luminance and modify the gamma to match the footage
- Add a second grade node, in my case the footage was predominantly green, so I reduced the red and improved green and blue in the scene to make it sit better in the scene
- I also decided to reduce the saturation slightly, but the difference is barely visible
Here an example of the footage before and after I applied my changes
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Node Graph Overview
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