Ross Shain
10
COW Coins
Forum Replies Created
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Theoretically, any user could create expressions that invert the 4 corner tracking data, pre-comp and than apply the inverse to it. But this is what Mamoworld does so well and it is an incredibly affordable tool: https://aescripts.com/mochaimport/
Ross Shain
Imagineer Systems
http://www.imagineersystems.com -
mocha Pro supports Fusion for planar tracking, 3D camera solving and roto export. New mocha Pro 5 coming soon has improved support for Fusion.
You can upgrade your Adobe bundled mocha AE to mocha Pro at a reduced cost.
Ross Shain
Imagineer Systems
http://www.imagineersystems.com -
You can track a shot in mocha and apply the track data to itself and use the “smoother” in AE to remove the high frequency jitters, but retain the general camera motion.
There is also a Stabilize Module in mocha Pro that allows you to do the camera smoothing in a simple pass.
This is a tutorial that I did a long time ago (2009!) but the general workflow is still valid.
https://youtu.be/dq59Ua8THwsTrack in mocha.
Export your X/Y keyframes to AE.
Copy them to the Anchor Point.
Use Smoother.Here is another tutorial that shows similar technique with added expressions.
https://mamoworld.com/tutorials/creating-ultra-smooth-pans-mocha-and-after-effectsRoss Shain
Imagineer Systems
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You should not break up the clips into segments. Instead create a track shape on your green screen…
When the actor gets in front, stop the tracker and move the shape so it avoids the actor. You can also create a new shape on the same layer using the X+ button.
The general method for this type of shot is to intelligently stop track, move search area to areas that are on same plane, then continue track.
If done correctly this is a very unique and easy to use “offset” tracking method when your track area gets obscured. When done correctly you will see the surface stick to the wall, even though the shape has been animated to capture various sections of the same plane.
Ross Shain
Imagineer Systems
http://www.imagineersystems.com -
Since the actors head is most likely getting in front of your tracking area, a good solution would be to move the “search shape” down to the left (the doors are on the same plane, so should be able to give a good track). Be sure to avoid reflections.
The best way to test is create a layer and draw a shape around the doors and other “co-planar” areas. I have uploaded a image for you.
Next display your Surface tool (blue box) and position this where your insert will go.
Turn on perspective and track. You should get a lot better results than dealing with the area behind the moving actor.
Hope this helps.
Ross Shain
Imagineer Systems
http://www.imagineersystems.com -
Hi Alec,
mocha Pro has some nifty tools to remove objects and match the lighting. However, If you are a real newbie, what I would suggest first is using mocha AE to stabilize the shot and do some clone/patching from small areas on either side of the rope.You might want to look at the MochaImport+ script from Mamoworld which can help assist the process.
This video is a quick idea of the process: https://youtu.be/gnTy6CC_y1IBut you still need to have a grasp on basics of planar tracking to make sure you can track. I would not worry about the rope itself but getting a track on the hay. Tough to tell by the stills, but if the hay is spinning, you will need to track the “rigid” elements such as the walls.
At last resort, sometimes a tricky shot is best solved with a little manual work, such as manually key-framing feathered asks around the rope, duplicating the layer and sliding small portions as patches.
best,
RossRoss Shain
Imagineer Systems
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You can do this in the Adobe AE bundled mocha AE or in mocha Pro, which is a stand alone application and has the ability to render stabilization on a focussed tracked area.
Ross Shain
Imagineer Systems
http://www.imagineersystems.com -
If you are running Adobe AE CC 2014, than “paste mocha mask” is an option found under the edit menu.
If you have a mocha mask copied to your clip board, there are 2 options to paste into AE:
1. Simply paste and it will apply as an effect
2. go to Edit?paste mocha mask and the mocha shape is converted into an AE mask layerRoss Shain
Imagineer Systems
http://www.imagineersystems.com -
One of the original companies (Legend 3D) that pioneered the digital colorization process uses mocha quite a lot for 2D-3D conversion. The challenge is very similar in that you have to “mask or isolate” everything on screen.
Certainly mocha AE or mocha Pro assists in this process – and will save a lot of time. But still every object on screen needs to be tracked and masked.
Ross Shain
Imagineer Systems
http://www.imagineersystems.com -
The key to this kind of solve with mocha is to use multiple shapes on 1 layer with the X+ button.
Isolates various areas of the screen that are not obscured by the actor AND avoid all the static by making some very small shapes around your track marks.
I would draw a shape arounds the screen edges and avoid the reflections. You can either add a 2nd layer on layer 2 to mask out the actor OR simply animate your search areas to avoid the actor.
It should not be a challenge for mocha.
Ross Shain
Imagineer Systems
http://www.imagineersystems.com
