3D tracking in Blender made easy with Geo Tracker

all right so a lot of y'all were wondering how I made the 3D tracking footage of some other videos so I figured I'd make a tutorial about it real quick so you want to get the blender Geo Tracker add-on once you have that installed we'll go over to here and create new Geo Tracker you see all this red stuff that means you need to input something so let's go ahead and find our clip now we just click this analyze button and it's going to analyze through the whole thing now that's been analyzed you want to go ahead and add in your geometry for this I'm just going to add in a simple plane and I'll select my eyedropper tool and select the plane and Press Start pin mode okay another one in pin mode it's kind of hard to see our plane but if you can barely see the outline right here we're gonna move all the corners to the correct locations [Music] all right then once we've done that we're going to click this button to track forwards to the end now if you'll notice it didn't it kind of slipped towards the end so what we're going to do is we're going to make sure we're gonna be on our end frame and we're gonna realign it make sure that everything matches up perfectly as we can and then we're gonna check backwards all right now you'll see we can go through it and everything looks like it matches up really well but just to be safe you can go into the middle you can realign things if you want to and then you can click refine and it'll track forwards and backwards from that point and then I'm just going to go through and do that a few more times throughout the track to make sure it doesn't have any slip UPS now that we've done that we'll go into scene position by geometry and select world origin and press ok let's exit pin mode and let's be sure to press convert on Geometry to camera that way that it's our camera moving instead of our geometry when we press play you can see that it's exactly that we can go into camera view and it looks like everything matches up really well and now from here you can really do whatever you want I'm going to scale up my plane to be a really big and then I'm going to go into my object properties visibility whoops actually first I'm going to go into Cycles GPU compute so I can use my GPU now go to object Properties or go to visibility and turn this into a shadow catcher that way when I go into rendered view you don't actually see it there but it'll cast Shadows one thing I forgot to do is turn on film transparency that way you actually don't see it there but it will cast Shadows so if I were to press forward see if I were to add a sphere can bring it up a little bit and it'll play like it's in the scene now really from here on out you can do whatever you want with the same now that you've got everything set up go into compositor press use nodes and then import or add a movie clip [Music] and this movie clip of course you want to select your original videos to go and locate it on your drive then you want to add an alpha over node [Music] combine all this together and let's add in a viewer [Music] let's render out a single image [Music] and look at there now we have it set up to where the CG element is in the scene and it should all be tracked perfectly that'll be it for this tutorial thanks for watching and stay tuned for the next one [Music] foreign [Music]

Channel: Vertex

Views: 25,842

Keywords: Blender, gorilla tag, gtag, monke, monkey, monkey game, vr, virtual reality, meta, quest, quest 2, quest 3, rift, rift s, cgi, animation, render, 3d tracking, geo tracker, geo, tracker, tracking, camera, camera tracking

Id: bZDyn91b1KM

Length: 4min 19sec (259 seconds)

Published: Sat Aug 26 2023