How to Remove video background EASY After Effects
Rotoscoping with the rotobrush tool has made it TOO EASY!
In this video, you'll learn how to use the rotobrush tool found in After Effects
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Step 1: Opening after effects
You have two options here
, you search for after effects in your creative cloud, and import your file directly in there
You’re already working in Premiere Pro and you right click, select replace with after effects composition.
PRO TIP: Many people shoot at 60 frames per seconds, which is like taking 60 pictures every second to make a video. This is great when you need slow motion. However, most videos are exported and edited at 24 frames per second or 30 frames per second.
So if you have a video at 60 frames per second, but your timeline settings are at 24 frames, nest the clip first before moving it to after effects. By nesting the clip, you’ll only need to edit 24 frames instead of 60!
Step 2: Find the Roto Brush
Once your clip is in After Effects, double click on the video layer and it will open a layer window. Look at that.
Our journey continues with locating the enchanted Roto Brush. It's hidden here in the toolbar, Ta-da! The Roto Brush is activated before our eyes.
Step 3: Cast the spell
Time to cast our first spell! Take your magical green brush and paint a stroke on the subject, object, or region you want to remove. A good tip is to not draw an outline but rather pass through the middle of the object. The edges tend to confuse our magic.
Step 4: Refining the Spell
Our initial stroke has set the stage, but our magic can always be improved. To refine our selection, we can add more strokes or even remove some parts. Hold down the Alt (or Option) key to remove portions of the selection with background strokes. Green is selecting, Red is Removing Selections. You can make the brush bigger or smaller, by clicking Crtl (or CMD) and dragging the mouse to the right for a big brush, and the left for a small one.
You can make the edges of things like hair look better using the refine edge tool. It's easy to find - just click and hold the roto Brush icon and a menu will appear. Choose the Refine Edge tool from there.
After you've traced the fine edges you want to improve, you'll notice that the grayed-out area, that means it’s working.
Then freeze your roto and Export.
boundary or alpha overlay, which you can actually change the color of using this button here.
Step 5: Unleashing the Magic
Once we're satisfied with our initial frame and strokes, it's time to unleash the full power of the Roto Brush. I like to move frame by frame by clicking Command (crtl) + Right arrows and going one frame at time, As our magic spreads, it may occasionally include unwanted regions or miss some parts of the original selection. Fear not! To correct these imperfections, we need to cast more spells. Pshew, sphew sphew. Zip Zip.
Step 6: Freezing the Magic
After our magical propagation has worked its way through all the frames, we reach a moment of decision. We can freeze the magic using the Freeze button located at the bottom of the Layer panel. Freezing locks our spell in place, allowing us to make adjustments without re-calculating. We can always unfreeze it and make our changes.