Hello everyone! Does anyone know how to use adobe after effects and blender 2.8 for camera tracking?
Hi, Blender cloud has some great tutorials about camera tracking. It is also important to understand basic fundementals how camera tracking works.
tthepainter Yes. I have done this successfully a few months back.
There is a script floating around somewhere - I think here - https://blenderartists.org/t/after-effects-to-blender-2-70a-javascript-python-generator/520162 . It is only for Blender 2.7, but I successfully updated the script to work with Blender 2.8. I don't have it to hand, but I can probably dig it out if you would find it useful?
An alternative is to use the 2.7 script, import the camera tracking into Blender 2.7, save your file and open in Blender 2.8. Then re-save. Some people do this.
AE camera tracking is excellent. Essentially, you do the tracking in AE, and then export a Python script that, when run in Blender, recreates the camera tracking. I got some very good results with Blender 2.8. See this video where he goes through the process: https://www.youtube.com/watch?v=el_n1UfPL_M , though this is using the Blender 2.7 script.
Bender has its own camera tracking, but it is (as usual for Blender) an extremely manual and time consuming process. Even forgiving the "you are on your own" approach that Blender takes, the main limitation for me was that it requires some degree of parallax for successful tracking.
What I mean by that - Blender camera tracking only works when you have a big difference in movement between numerous foreground objects and numerous background objects. So you basically need lots of close and far away objects, that are clearly trackable, moving sideways across your frame. For example, if you take a video just walking down a street facing forwards, that's very unlikely to work with Blender camera tracking. Walk sideways down a beach on the other hand (with your camera at 90 degrees to direction of travel) and you might get a good result - after lots of manual effort painstakingly tracking markers from frame to frame.
AE camera tracking on the other hand is a matter of loading up the video and pressing a button... I love it. It's pure f****** magic.
I hope that helps.
sstatus451_cg Thank you very much! Yeah, i think it' a good idea to use both versions 2.7 and 2.8 😏. Very useful!
Hey guys, thought I would bump this thread before starting a new one on the topic.
Was wondering if anyone could share some insight with their lens distortion workflow between Blender and After Effects.
Standard plate de-grain, rolling shutter removal done in after effects and then EXR delivery over to Blender for camera tracking and match move. Lens undistort done through Polynomial K1/K2 process for matchmove and CG integration. I love that 2.9 has the ability to setup the Lens Distortion profile so that K1/K2 values can be directly input into Nuke to keep the lens distortion model consistent between apps, but I was wondering if anyone has a solution for After Effects.
Basically I would need to bring that data inside of After Effects to re-distort the blender renders to match our distorted plates.
I know this can be achieved by generating STmaps inside of blender but I was wondering if anyone has experience with data value exchange between AE and Blender to achieve this or if there was another solution.
Thanks!