Basics of Camera Tracking - GeoTracker for Blender Tutorial
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- čas přidán 31. 05. 2024
- Here’s a quick and easy way to recreate your shot in 3D with the Camera Tracking mode of GeoTracker for Blender. See how a smooth camera track can help you add a CG element to video in a few simple steps.
Timecodes:
0:00 - Intro & Highlights
0:21 - Things we need for camera tracking
1:24 - Align target geometry
1:47 - Specify focal length
2:45 - Mask out live action elements that get in the way of tracking
4:30 - Let’s track it!
4:48 - Check your camera track
5:16 - Convert Camera animation to Geometry and vice versa
5:49 - Tracking a zoom shot
6:40 - Add a 3D hot air balloon to video
7:45 - Add light and shadows
9:50 - Compositing
11:06 - The result
Download GeoTracker for Blender: link.keentools.io/gtb-beta-ca...
Download project: link.keentools.io/gtb-camera-e...
Watch our Basics of Geometry Tracking tutorial: • Basics of Geometry Tra...
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It's really great that the geometry used for tracking can be used directly as shadow catchers and masks.
I will subscribe it when the beta is finished!
Thank you for bringing this to Blender, amazing tool!!!!!
I'm struggling to perfect matching new half of twin house to existing one on drone footage and accidentally found your channel. This addon looks amazing:D
❤ Thanks for making this amazing tutorial.
the Addon is AMAZING!!!! Thank you so much !!!
Awesome, keep doing tutorials ! ❤
Amazing! I love tutorials❤
Blender should create something like Cinema 4D! They have the best camera tracking I've ever seen!
Fantastic 😊
Amazing !!
bro cool . I already bought it. It's really amazing.
thanks very much
Eagerly waiting for FaceTracker on Blender.
We're considering it, so please stay tuned!
@keentools but FaceTracker Beta is already available for Blender or you are talking about something different?
@@juanfxblender Really? Where can I find it? I don't see them mentioning on their website. FaceTracker is available only on Nuke as of my knowledge.
@@juanfxblender Hey! Currently, GeoTracker for Blender is available as a beta. With this add-on, you can also track head movements. However, it doesn't support tracking of facial expressions or emotions. For these specific purposes, there's a separate plugin called FaceTracker, which is currently only available for Nuke.
I'm very interested in Geo tracker for blender and After Effects but I'm also pondering getting synth eyes. Cost wise it's an interesting comparison for roughly 2 years of Geo tracker annual subscription I could buy Syntheyes outright. Synth eyes seems to have a deeper richer feature set but GeoTracker works directly within AE and Blender. My question is how would this kind of camera tracking in Geo traker hold up in a production environment with more troublesome shots. Could GeoTracker be relied on as a camera tracker for all situations or would there be times its geometry based approach would fail where Syntheyes could potentially get the shot. I have to say the subscription model for GeoTracker is off putting. The ability to buy outright would make it more attractive in this comparison for me.
what happens when camera it is moving and the object i want to track it is also moving?
Tq sharing 😊
Game changer if it's possible to add any pixel shifting info that woud be just miriqle! hah
Hi, we love what you guys doing here! We also have concern and question about some footage coming from GOPRO 11 shoot on top of FPV drone where we got issue to track the camera because of it wild angle view distorted + some blur because of the setting + ReelSteady already apply when we receive the footage, so we was looking if you have any documentation or reference tutorial for this type of camera please ?
Hey! Our tracking system is optimized for undistorted (linearized) footage. When there's significant distortion, especially with post-stabilization tools like ReelSteady, it can impact the accuracy. For the wide-angle distortion, there are third-party software solutions that might help. Not sure about the exact software for your case, but it's definitely something worth exploring.
@@keentools We used AE as third-party software for the distortion, ok then we will have a shoot. Thanks!
Hi! I get an error with Keentools saying that "there are not enough features to track the object from frame so and so." it says "possibly the object is too small". I made it bigger but I still get the same error :( do you have any idea on how to fix this? Thanks in advance.
Hey! Could you please share the screencast of the issue, along with your Blender project and sources if possible, at team@keentools.io? We'll try to understand what might be going wrong.
Also one thing you can do so the colors match better is go to Output Preferences > Output > Color Management and then select override and then set the view value to Standard instead of Filmic. It will make your colors more accurate and true to what they should look like.
What methods might you suggest for tracking an actor on a green screen with tracking marks?
Hey! Apologies for the late response. If you're looking to track an actor with tracking marks on a green screen, it's essential to know that GeoTracker is not the best tool for deformable objects like a full actor. GeoTracker is suited for rigid geometries.
No worries, thanks for response. However I was referring to the tracking marks being tracked, my mistake for not better explaining...and wondering which would be better for those small markers...objet or camera? Blender tracker is pretty decent for small markers.
@@keentools
In compositing my rendered frame is not in the same locations as the it is in tracking how to fix that ?
Try this: Properties panel (bottom right) > Output Properties > Format > Resolution % - set to 100%. If that doesn't fix the issue, please send a message to team@keentools.io describing the problem
This looks very interesting. Why do all the tracking tutorials show such easy shots though? In my years as a matchmover, I don't think I have ever gotten a shot that clean haha. Something like that realistically would just be autotracked. It will be interesting to see how well this holds up under more challenging shots and if it is actually better then blender's stock tracking. I could potentially see this falling apart under extreme motion blur or occlusion. Going to have to give it a go and find out. Very nice to see blender tracking getting some love and attention regardless.
Right - I never see anyone do a complex camera shot involving actual people crossing the frame etc
Hello there! You can explore a more complex shot in our GeoTracker for Blender demo video, for example. Our basic tutorials are designed to demonstrate the add-on's functionality on relatively straightforward shots, but we're open to the idea of creating more advanced, not basic, tutorials.
@@keentools I have seen a really good object tracking video - Can you link to the one featuring advanced camera tracking?
hey there, i have a question i cant find an answer to. hopefully you can help.
i try to track my camera AND the object seperatly.
For example i have a moving camera shot of a car. and lets say the camera spits out a fluid.
i of course need to track the car but also the camera so the fluid can collide with the surroundings.
thank you for your help.
Cheers!
Track camera first using some static object in the background. You can also get a camera track using built-in Blender tracker. Then create new GeoTracker, plug that camera into Camera input and now track the moving object.
@@keentools is it that simple? I tried that and it didn't work properly.
Imma try again with a simpler scene as an experiment. Thanks for your respond.
Great plug for sure!
can you make tutorial for taking both camera and objects at the same time ?
We'll think about it! Menwhile, I can briefly desribe how to do both camera and object track. We recommend first capturing the camera movement by switching to 'Camera' tracking mode and then selecting this tracked camera in GeoTracker to track the object.
How to define that the statue. shadow may a cause a problem ?
Hey! In our tracking process, we're matching geometry with the image. Since our geometry is a flat surface without any tree or statue, elements like these can cause issues because they move differently (parallax). So, we mask parts covered by trees (and a statue) to ensure smooth tracking.
Similarly, if you were to track, say, a microphone in someone's hand like in our demo video, it would be advisable to mask out the microphone's handle where it's held. This is because the model doesn't contain geometry of a clenched fist, and thus the parallax could compromise the tracking accuracy.
@@keentools Thank you ..the keyword is parallax
I tried it on a few shots and i never seem to get good camera track out, always go crazy half way through.. any more tutorials on that matter?
Hey! If you've got a tricky shot, don't hesitate to send it over to team@keentools.io. We'll take a look at it and offer some guidance.
HI I JUST BOUGHT THIS AND WHEN I LOAD MY FOOTAGE I GET A TRACEBACK THAT SAYS "TYPE ERROR AREA NOT FOUND". WHY? DO I NEED TO GET A REFOUND?
WHEN I HIT ANALYZE AFTER THAT BLENDER CRASHES. I TRIED BOTH 3.6 AND 4.0 WITH THE LATEST VERSION OF GT.
I NEED TO FINISH A PROJECT PLEASE ANSWER, I HAD TO SPEND MONEY ON THIS
Hi! Please message us at team@keentools.io mark as 'urgent' Provide details: your OS, Blender and GeoTracker version. If you attach a video recording showing the problem, that will be very helpful. Thanks!
When i upload my file to a render farm service it doesnt load, am i missing a step somewhere?
Hey! Could you please share the screencast of the issue at team@keentools.io? We'll try to understand what might be going wrong.
We will need 3d building for tracking, or just a plane ?
Hey! You can actually use just a default cube to track the front part of a house. It will work. This means you don't necessarily have to model the entire house.
I installed the addon and it won't let me add the mp4 video:
- I used both 3.6 & 4.0 blender
- currently subscribed to the geotracker service & activated
- Added fspy & plane
- Try to add image sequence instead of mp4
- Changed it from 24fps to 29.97fps to match footage
- Render is on Cycles, Experimental, GPU
- Ryzen 7 & RTX 3060
We replied to your email for the details
precalc has problems. check it, anyone know the solution? Thank you.
Hey! Please make sure that the analysis range for the start and end frames contains images in the footage. You can check this by scrolling through the footage in pin mode from the start frame right up to the end frame. It's possible that the frame range for analysis is more extensive, either at the beginning or the end. If everything looks okay, then you should re-analyse. In short, this error means that there are no calculated frames from the analysis file in the selected tracking range, suggesting some frames might be missing.
Thank you very much
what about if you have a camera rotation of 180 degrees or more ?
If you have a rotation of more than 360 degrees, you can press the Unbreak Rotation button in the Scene tab. This will help avoid 360 degree jumps, if that's what you're asking about.
is there a possivilitty to track points with this method like tracking points...not just geometry
Hey! Unfortunately, I don't fully understand your question, but GeoTracker is a geometry-based tracker. It works by tracking special 2D points throughout the video. Initially, it analyzes and tracks these points, and then utilizes them to track the geometry.
@@keentools well I'm trying to figure out if I could use this tool to track my tracking points in 3D space ...so I could switch to this tool instead of the blender Tracking
How do I make a model for tracking without knowing the focal length?
Hey! You can actually use just a default cube to track the front part of a house. It will work. If you don't know the exact focal lenght, you can tick 'Estimate focal length' checkbox to get that value calculated for you. Just remember, you need at least 4 pins set on the wireframe for it to work, and it only estimates for the current frame while pinning. Hope this helps!
Is it possible to make another video tutorial but rendering in eevee? It is much faster but more complicated. Anyway, thank you for this video! )
You can always find the compositing part tutorial on youtube, I'm sure there are some videos about creating shadows with eevee!:)
@@TheAnyaGrig sure but author of the channel has a talent to explain easily complicated stuff. )
True, but as you see it is mostly about GeoTracker:)
yeah uh the video that i made for my animation in blender wont render please help?
Hey! We're having a bit of trouble understanding the issue from your message. Could you please record a screencast and share it with us at team@keentools.io?
The blender render view is ok but after rendered the output is very bad pls give me solution ❤❤❤❤❤❤❤❤❤
Hey! We're having a bit of trouble understanding the issue from your message. Could you please record a screencast and share it with us at team@keentools.io?
Blender should do something about their render engine
Sir I try geo tracker. Sir plz can you make a tutorial on mean like camera coming out of frame to the object mean I try it but it’s not perfect what I want with geo tracker. For e.g shot is like - camera moving side to the main object mean like in the start of the video object not in the frame. ( extra plz can you make tutorials on multiple geo trackers use )
You guys make really nice tools, but the price guts me, a subscription nonetheless... Ouch.