A track matte creates holes or spaces through which the underlying layer is seen. Here we discuss the differences between Mask and Track Matte along with its various features and the uses of Matte in After Effects. Only the shape layer-portion of the scenery is revealed. This means that when the layer is moved or rotated or scaled, the mask undergoes these changes too. Track mattes, also referred to as mattes, create a “cut out” of another shape. THE CERTIFICATION NAMES ARE THE TRADEMARKS OF THEIR RESPECTIVE OWNERS. But isn’t this what the masking tool does? With the effect targeting the matte layer, you will then want to define the track matte with the “Composite Using” option and select Matte Alpha or Matte Luma. Go to Window > Tracker and connect the anchor point of the solid to the wheels. THE ALPHA TRACK MATTES IN AFTER EFFECTS. Suppose you have a text in which you want an image, a motion graphic or a video to play. Buy track matte footage, graphics and effects from $10. A track matte will work excellently for your image. Set Matte allows you to use only one matte against many other After Effects Layers. The differences between Set Matte Effect and a Track Matte in After Effects can be profound. Part 3: How to Use an Alpha Matte For this effect to work well, I prefer to use … Track Mattes. Track mattes are the primary method by which you can use the alpha or luminance information of one layer to set the transparency of another layer (Figure 3.37).This is actually the normal way to apply a matte channel in many compositing applications, which don't have the concept of the alpha channel so firmly integrated into the overall pipeline as After Effects. No problem. A track matte is content on a layer used to create a transparency in another layer. Next, choose the layer which contains the original footage of the car drifting near the turning of the road. These matte effects can be used a few different ways and accessed either through Ae’s track matte system or by using SetMatte, an effect that you can apply to any layer. A good early American example is seen in The Great Train Robbery (1903) where it is used to place a train outside a window in a ticket office, and later a moving background outside a baggage car on a train 'set'. But isn’t this what the masking tool does? Read on to understand. Follow either or both of these paths: In this course taught by Nol Honig, founder of. Choosing the Track Matte effect. What is a Track Matte? If instead of Alpha, you choose to go with the Alpha Inverted matte, the scenery is displayed in areas outside of the shape layer as shown below. This can be changed if necessary by going to the Composition Settings menu option (Composition Menu -> Composition Settings) (Shortcut is Ctrl+K). Next, under the Effects Control > choose Matte Luma. These are an important, useful tool in After Effects which will allow you to animate literally any asset. If track motion is grayed out, refer to the … - [Instructor] After Effects allows you to reference … another layer's transparency … or pixel brightness to control what is visible. Hence white appears with 100% opacity, black with 0% opacity and red with opacity somewhere in between. Note that our tool does not use the Set Matte effect and in many cases eliminates the need to use After Effects internal track matte. Color for video is divided into three color channels: red, green, and blue (RGB), with each color assigned a range of values from 0 to 255. You will also see in the Effect Controls that you can invert the matte by checking the Reverse box. option, you're asking After Effects to use the alpha channel of the layer above as a mask for the layer below — and it will use any pixel above 0% opacity as the mask. 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