Simon Ubsdell
6
COW Coins
Forum Replies Created
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[Bouke Vahl] ” dont think you can chroma key the screen with shadow behind the girl. It’s not green, it’s dark grey.”
A good multi-purpose keyer would be able to handle all of this pretty easily. Unfortunately there aren’t any good multi-purpose keyers … yet.
Simon Ubsdell
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No problem. Always happy to help with any questions about Fusion. I know it can be confusing to start with.
Simon Ubsdell
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No, the matte image only goes into the Merge tool’s Mask input like so:
Note that every Fusion image processing tool has a Mask input so you can use the same technique with all of them. For example here I am using the same matte to mask a Blur:
And here it is masking a Color Corrector:
Simon Ubsdell
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Although this method makes sense, it’s overkill and you don’t need a luma keyer. The mask input of any tool can use the luminance of the source matte image and there are built-in tools to clip the black and white values of the luminance.
Simon Ubsdell
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Maybe it’s a workspace issue. Have you tried using the default Color workspace or making a clean new one? I’ve found they get corrupted quite easily and it often happens when you’re doing a version update.
Simon Ubsdell
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Unfortunately Premiere rasterises vector files so there’s no way of taking advantage of Illustrator or EPS vectors to keep things clean and sharp.
The best way of handling your scaling issue is to make the image the right size (or close enough) in Photoshop rather than letting Premiere do the scaling. You will get a much better result and you can even chose your scaling algorithm for best results.
Simon Ubsdell
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Make sure that you have the track selector enabled for the clip you want to colour correct. Without this enabled the Lumetri controls won’t automatically be available.
Simon Ubsdell
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Every clip in the Browser has a sub-menu that shows you how many times and where it is used in a timeline.
Click on the downwards arrow to access this.
Then you can select any item in the list and Premiere will navigate to that instance on the timeline. It’s a great feature.
Simon Ubsdell
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Glad to hear that helped.
Obviously there are different ways around this problem such as simply scaling up the white values but I thought this was a fun way to approach it, and it’s a useful trick to know because you are not compromising the original image in any way.
Simon Ubsdell
Motion Graphics & VFX Tutorials
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