From the course: VFX Keying: Master Course
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How the IBKColor assist works - Nuke Tutorial
From the course: VFX Keying: Master Course
How the IBKColor assist works
- [Narrator] Sometimes, you just can't make the IBK color node cover everything you want. In the last video, you saw me struggle to get the remnants of these feathers covered, and I didn't quite make it. So here we'll see how to give the IBK color node an assist. So here is me trying to pull an IBK color on the original plate, and you can see I've got some leftover colors, which I'd like to get rid of. So how do we give it an assist? Starting back with the green screen, we pull a hard key. It has to be a hard key. We want nothing here in the backing region and we want gamma slammed down, no holes in our foreground, okay? We're not trying to pull a pretty key. We need a hard key. Once we have the hard key, the next step is to take it and dilate it to expand it and make it a little larger. We then pipe it over here as the mask input to a key mix node and do this, we comp in the complimentary color to the backing region. For a green screen, we open this up. You can see my green screen…
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Contents
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Step 1: Analyze the clip13m 34s
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How to manage grain and noise5m 14s
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Pre-processing the clip for the keyer12m 2s
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Screen-correction workflow11m 45s
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Tips on adjusting the IBKColor node12m 19s
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How the IBKColor assist works6m 24s
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Building a clean plate from a clip8m 3s
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Building a clean plate without an IBK node4m 20s
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Working with a real clean plate4m 53s
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Retaining shadows with screen corrections11m 45s
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Stack IBKColor nodes for cleaner clean plates5m 30s
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Good (and bad) tracking markers7m 32s
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Tracking marker removal techniques12m 39s
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Removing tracking markers with screen correction5m 19s
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