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AE effect to match lighting condition, as well as re-apply to additional layers?
I’ve got two shots of the same object in different lighting conditions. (One is a 3d render, the other is live-action.) I’d like to use AE effects to sample the basic lighting in the live-action and apply it to the 3D render. Is there an effect that will essentially say, “Sample color A, then adjust hue/light/sat to make it match color sample B. Then apply that adjustment to the whole image as if this were the new ambient lighting condition.” ?
Effect “Change to Color” seems a bit like what I want to do, but it’s trying to just adjust a portion of the object, and that’s not what I need. Specifically, I want to use a common reference object to compare the lighting change so that I can re-apply that change to the logo artwork that I need to insert onto the live-action shot.
Thanks for your input,
Greg NeumayerAntifreeze Design
https://www.antifreezedesign.com -
3 Replies
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I may not have been clear enough, Dave. I’m not working in 3D at all.
I have a product render (done in 3D under white lighting). I have a live-action shot with the product (lacking branding). Now, imagine that I have an illustrator logo, which is also created in white light (by default). I’d like to apply the appropriate color transformations to place this in the live-action shot by sampling the same point on two references (the 3D render, and the live shoot). I’m basically trying to capture the white balance offset and re-apply it to incoming artwork. Surely this is a pretty common workflow for someone in vfx, right?
Antifreeze Design
https://www.antifreezedesign.com -
Did you ever figure this out? I know in Nuke, you can use the Curve Tool, like in this tutorial. I use After Effects though, I’ve never figured out a great way to do this in AE. This is what you were after, correct?
https://www.youtube.com/watch?v=MKVlSiVOaxk&t
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That’s a really cool example, because not only is it grabbing the lighting, but it’s dynamic lighting, not just a static LUT being applied.
In hindsight for my project, it probably would have been best to get a LUT by throwing some color samples in front of the camera before the shot. I haven’t done much of that, but if we can throw a white card up and say “this is white” for our white-balance, we can probably throw up a known baseline (RGB,Black,White) color card in front of the camera and then sample it to create a LUT, right?
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