After effects keylight 1.2 white
To use the Inner/Outer key, create a maskto define the inside and outside edge of the object you want toisolate. The Inner/Outer Key effect isolates a foreground object fromits background. Drag the entire bar left or right to position it under the histogram.
Pixelscorresponding to the area covered by the bar remain opaque pixelscorresponding to the areas not covered by the bar are made transparent. The position and shape of thebar in relation to the histogram determine transparency. Using thetransparency control bar beneath the histogram, you can adjust the rangeof pixels that are made transparent. From left to right, the histogram extends from the darkest(a value of 0) to the lightest (a value of 255). The histogram displays a representation of the brightnesslevels in the layer, showing the relative number of pixels at eachlevel. In the Effect Controls panel, the Extracteffect displays a histogram for a channel specified in the Channelmenu. The controls for this effect are similar to the controls ofthe Extract effect in Adobe Premiere Pro, but the purpose and resultsof the effect are different. It’s best used to create transparency in an image shotagainst a black or white background or against a background thatis dark or bright but consists of more than one color.
The Extract effect creates transparency by keying outa specified brightness range, based on a histogram of a specifiedchannel. For this reason, the Difference Matteeffect is best used for scenes that have been shot with a stationarycamera and an unmoving background.īefore closing the Effect Controls panel, make sure toselect Final Output from the View menu to ensure that After Effectsrenders the transparency. Typically, it’s used to key out a staticbackground behind a moving object, which is then placed on a different background.Often the difference layer is simply a frame of background footage (beforethe moving object has entered the scene). The Difference Matte effect creates transparency bycomparing a source layer with a difference layer, and then keyingout pixels in the source layer that match both the position andcolor in the difference layer. Drag the Max slidersto fine-tune the end of the color range. Drag the Min slidersto fine-tune the beginning of the color range.
After effects keylight 1.2 white plus#
Use the sliders in the Min and Max controls to fine-tunethe color range you selected with the plus and minus eyedroppers.The L, Y, R sliders control the first component of the specifiedcolor space the a, U, G sliders control the second component andthe b, V, B sliders control the third component. This effect works with 8-bpc and 16-bpc color. The Color Difference Key produces high-quality keying for allwell-lit footage items shot against a bluescreen or greenscreenand works especially well with images that contain transparent orsemitransparent areas, such as smoke, shadows, or glass. Matte Partial B bases the transparency onthe specified key color, and Matte Partial A bases transparencyon areas of the image that don’t contain a second, different color.By combining the two mattes into a third matte, called the alpha matte,the Color Difference Key creates well-defined transparency values. The Color Difference Key effect creates transparency from oppositestarting points by dividing an image into two mattes, Matte PartialA and Matte Partial B.
After effects keylight 1.2 white how to#
Along the way, you'll learn how to smooth harsh edges.įor information about keying in general, including links to tutorialsand other resources, see Keyingintroduction and resources. In this brief tutorial, I'll show you how to use a special combo preset in After Effects CC for pulling a clean key from green screen footage. Kali ini kita akan membahas dengan singkat dan jelas tentang Basic Chroma Keying green Screen ini. Though the color keying effects built into AfterEffects can be useful for some purposes, you should try keying withKeylight before attempting to use these built-in keying effects.Some keying effects have been superseded by more modern effectslike Keylight.Ĭhroma keying Green Screen adalah teknik yang paling sering di pertanyakan siapapun yang sedang belajar Visual Effects.