#After effects keylight 1.2 white skin#
#After effects keylight 1.2 white full#

Those criteria sound vague, not easily met-and it's true, they're somewhat vague, and often not met. The lesson contained in the table is that a healthy background color has a reasonably high saturation level and a distinct hue. Subtract a mathematically weighted amount of the screen color and make it semitransparent Key out the pixel completely, making it transparent How Keylight Makes Key DecisionsĬompared to Screen Color, the Pixel Is.Ĭonsider the pixel to be foreground, making it opaque From that, Keylight makes weighted comparisons between its saturation and hue and that of each pixel, as detailed in the following table. The core of Keylight involves generating the screen matte as mentioned earlier, the most essential step is the choice of screen color. This section offers a glimpse into the inner workings of Keylight, which will greatly aid your intuition when pulling a matte. The Inner Workings of KeylightĪ few decisions are absolutely essential in Keylight most of the rest compensate for the effectiveness of those few. Before delving into those (in the 'Focusing In' section), let's look at how Keylight actually operates. Keylight anticipates these issues, offering specific tools and techniques to address them.

#After effects keylight 1.2 white full#

Not only that, but the alpha will preview at speed, in full motion.

Foreground/Edge Color Correction: This allows you to adjust the hue, saturation, and color of your keyed subject.You can switch a RAM Preview to Alpha Channel view by pressing Alt-4 (Mac: Option-4) without losing the cache.

Screen Despot Black/White: This allows you to try and remove spots that can sometimes appear while keying footage.

Screen Shrink/Grow: Adjusts the size of your mask and edges.

Clip Rollback: If your edges appear to be lost or over-keyed, this setting can help try and recover them.

The Clip Black works almost in reverse, reducing the issue of subject and foreground artifacts appearing in the background.

Clip White and Clip Black: Adjusting the Clip White can help reduce issues of transparent and see-through subjects.

It also adjusts how much blur is applied to the matte.

Screen Pre-Blur: Can help smooth over any errors or issues with the edges of keyed footage.

Screen Balance: This tries to offset issues occurring from unevenly lit background screens.

Screen Gain: Controls how much of the screen color is removed.

Alpha Bias: Can be used to try and offset issues from color imbalances when unlinked from the Despill Bias.

#After effects keylight 1.2 white skin#

This can be particularly prevalent in skin tones and around the edges of hair.

Despill Bias: This allows you to try and offset 'spill,' where the background has reflected (or 'spilled') onto the subject.

Screen Color: As already covered, this creates the matte using the main color of the background.

Playing around with the parameters and settings within Keylight can let you adjust how the image is keyed, and iron out issues. Try and avoid shadows behind your subject with your lighting setup (these are harder to remove in Keylight). Any wrinkles or deformities in the green screen behind the subject show up after keying, so get that ironed out if you're using a fabric background! Also, make sure that your shot is evenly lit and that the color of your subject's clothes doesn't match the background (wearing a green top with a green screen is a huge mistake). Let's jump in and get to grips with Keylight, so you can get the most out of keying your footage.īefore we get started, it's important to note that even with all the tweaking of minutiae in Keylight's settings, if the footage you're working with isn't properly shot, the results will vary.Īs a rule, ensure that your subject is separated as much as possible from your background.

But once you get to know exactly how they function, the process becomes a lot simpler. The number of settings the plugin offers can be daunting at first. Keying out backgrounds using a green or blue screen in After Effects becomes much simpler once you know the core settings of Keylight, the built-in keying plugin.