XY STMap v1.1
Convert all the points of a Tracker through a STMap.
In your Tracker, select the XY STMap panel, then:
- Select a STMap
- Start the conversion
XY STMap retrieves each point from the Tracker and find the corresponding point on the STMap. Then it creates a new Tracker that contains these new track points.
How did I build this?
- The main difficulty is that a 4k STMap contains more than 8 million points. If you have 600 track points, that is almost 5 billion matches to test!
- I therefore applied myself to first coding a system that estimates the area of the STMap where the point we are looking for could be located, and thus limit the number of points to be compared.
- On my machine, XY STMap now takes 17 seconds to convert 600 track points.
How to install XY STMap ?
Create a folder named ‘python’ in your .nuke folder and put this file inside.
Add this line to the init.py file:
nuke.pluginAddPath("python")
Then add these lines to the menu.py file:
import xy_stmap
nuke.addOnCreate(lambda:xy_stmap.panel_OnCreate(nuke.thisNode()), nodeClass="Tracker4")
Tip: you can measure how long it took to convert your tracker.
- type X to open the command window, select Python
- then type xy_stmap.convert.kronos