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IanHubert
IanHubert

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Another Greenscreen Tutorial (working on the Taxi Scene)

This one covers a lot of random ground, but I think it's a good catch-up for how I'm working with greenscreen these days.

I give a quick intro to keying in Resolve/Fusion at the end of the video, but to get really good results you probably want to give the edges a bit of a cleanup- this is the tutorial I used for all the stuff in A Single Point in Space. Seems to give really good results

Here's my original greenscreen tutorial, which talks about keying entirely in blender, and a really useful trick for normalizing the size/placement of your footage within your scene.

Here's the Camera Project Node addon Nathan made! (go to "Code", "Download Zip", and install it like you would any addon).

Here's my old motion tracking tutorial- everything should still work basically exactly the same (although I tend to hand-pick individual points instead of doing the "Auto-Detect Points" route these days).

Here's the Camera Shakify Addon

And I think that's most everything I mentioned in the video!

Another Greenscreen Tutorial (working on the Taxi Scene)

Comments

Thanks Ian. You mentioned that recorded very underexposed ? Why is that ? Why did you shoot your character so dark ? Wasn't it better to shoot with more light and then reduce exposure in post ? Thanks for this video !!!!

Nahuel

did you use textures.com for the texture of the car and do you know the name of it

Mamadou Mboup

How do I install the camera projection addon?

Locksley Lennox

when I tried to install the addon in blender, in the addon screen it is not showing but it is saying modules installed, how to fix it?

Tutor Amit Official

All the clean plate node in Fusion or the IBK in nuke is doing is essentially just pulling an initial key, then growing the edges of the screen to fill in the missing area, so it would be trivial to recreate this in blender's compositor! Also while the clean plate is definitely a big help, I almost always still end up using multiple keyers to get the job done on tricky shots. In fact, the biggest mistake I see beginners make is trying to use one keyer for the whole shot, rather than targeting each area with its own keyer

Zeke Faust

Hey Ian, there's actually an easier way to key in Fusion: don't use the colour picker in the Delta Keyer node, instead use the 'clean plate' input to feed it the colour of the greenscreen; this will get significantly better results with less steps. You can either feed this input a clean plate of the greenscreen that you shot on-set, or you can use a 'Clean Plate' node, pick the colour, and then plug that in. This input in the delta keyer node gets better results because you're not just telling delta keyer to key with a solid colour, you're telling delta keyer to key using a texture which matches your greenscreen. This means you can key all the gradients in the greenscreen at once, without having to use all the Chroma keyer nodes like you have here. You can actually do this in Blender too by feeding a clean plate into the "colour" input of a keyer node, but Blender doesn't have a 'Clean Plate' node to isolate the greenscreen like Fusion and Nuke, so you'd have to use a clean plate you've shot or isolate the greenscreen using an external software (Fusion, Nuke, or even Photoshop/Affinity Photo if you feel like painting out the actors). This is essentially how big productions get fine details on the edges of their keys without spending hours rotoscoping every hair. It just makes everything so much faster! It even gets decent keys when your greenscreen is wrinkly, which is pretty handy.

Brilliant!! So many useful tips! And the taxi shots are gorgeous!

Nate Pantumsinchai

Always a blessing when you upload Ian 👍🏻

Not Louiiis

I like it! I haven't even thought about After Effects in ages. They do most of the same stuff, but the node-based approach feels like it gives a bunch of control in a way I like. One of the big things that'd be hard to go back from is having all the grading/editing/compositing all in the same timeline. I'm hopping back and forth between everything constantly, and it's really handy.

Ian Hubert

Great tutorial Ian! I haven't tried Fusion yet, what has your experience compared to After Effects? Is it better for your workflow?

Diego Nossa

Another thing about video quality as it relates to keying is it's not just about bit depth, but compression also! A video with heavy HEVC compression isn't going to key well, even if it's 10 bit.

Zeke Faust

you rule!

Connor McGuire


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