After Effects Expressions Using Wiggle to Create Random Movement in Adobe After Effects Editors sometime cringe at the word expressions, but have no fear. When you understand them they really aren’t scary and can end up saying you a lot of time. If you’ve ever seen animations where light is flickering or a camera shakes, it’s likely you’ve seen the wiggle expression in action. Wiggle is one of the most popular After Effects expressions, as it is easy to use and visually interesting. Instead of creating a bunch of keyframes to make a layer randomly move, we can do this with a couple of numbers. The Wiggle Expression in After Effects For this example I created the word ‘wiggle’ from text. Option (Mac) or Alt (PC) click on the stopwatch to create the expression. Type wiggle(2,50). If you want to modify the wiggle simply change the numbers. Wiggling One Dimension What if you want to wiggle just the x or y position? I went to motion-graphics-exchange.com (an online resource for After Effects expressions), and searched for “wiggle one dimension”. Controlling the Wiggle Expression
Dan Ebberts's Expressioneering Design Guide There are different ways to approach this, but here we'll focus on creating an opacity expression that can detect when a camera can see the layer's front side. In that case we want the opacity to be 100%. We want the opacity to be 0% when the camera can see the back of the layer. Once we have such an expression, we can apply it to layers representing both sides of an object, rotate the back layer 180 degrees on its y axis, and then parent the back layer to the front layer. To make this work we're going to take advantage of one of the expression language's extremely handy (but, unfortunately, somewhat difficult to understand) features - layer space transforms. In this case we will use the toCompVec() transform to convert a vector pointing out of the layer (in the direction of the z axis) into the coordinate system of the camera view. This all sounds incredibly complicated, but the code itself is deceptively simple.
youtube - Advanced encoding settings Below are recommended upload encoding settings for your videos on YouTube. Container: MP4 No Edit Lists (or the video might not get processed correctly) moov atom at the front of the file (Fast Start) Audio codec: AAC-LC Channels: Stereo or Stereo + 5.1 Sample rate 96khz or 48khz Video codec: H.264 Progressive scan (no interlacing) High Profile 2 consecutive B frames Closed GOP. Frame rate Content should be encoded and uploaded in the same frame rate it was recorded. Common frame rates include: 24, 25, 30, 48, 50, 60 frames per second (other frame rates are also acceptable). Interlaced content should be deinterlaced before uploading. Bitrate The bitrates below are recommendations for uploads. Recommended video bitrates for SDR uploads To view new 4K uploads in 4K, use a browser or device that supports VP9. Recommended video bitrates for HDR uploads Recommended audio bitrates for uploads Resolution and aspect ratio The standard aspect ratio for YouTube on a computer is 16:9.
Expressions - Introduction Introduction to Expressions Before we really focus on Expressions, we should talk a little about relationships in After Effects in general. As far as I know, there are five main ways to establish relationships between elements in After Effects: Brute Force: you simply keyframe things in a way that makes them look like they’re related, even though there’s no essential connection between them. Pre-composing: You can place a number of layers together in one comp, and then use that comp as a layer in a second comp. Parenting: New to After Effects 5.0, Parenting lets you establish hierarchical relationships without pre-composing. Motion Math: Like Expressions, Motion Math is a simple programming environment within After Effects. Expressions: Expressions are similar to Motion Math, but maintain ‘live’ relationships. Of these types of relationships, Expressions may be the most powerful, but also can be the toughest to create, with the least assistance from After Effects. When to Use Expressions
Background Inpainting for Videos with Dynamic Objects and a Free-moving Camera M. Granados1 K. I. Kim1 J. Tompkin1,2,3 J. 1MPI Informatik 2UCL 3Intel Visual Computing Institute Abstract We propose a method for removing marked dynamic objects from videos captured with a free-moving camera, so long as the objects occlude parts of the scene with a static background. Paper In Proc. Sequences The video sequences shown in the paper are available in H.264 lossless format: S1: [Input][Mask][Foreground mask][Result] S2: [Input][Mask][Foreground mask][Result] S3: [Input][Mask][Foreground mask][Result] S4: [Input][Mask][Foreground mask][Result] S5: [Input][Mask][Foreground mask][Result] S6: [Input][Mask][Foreground mask][Result] S7: [Input][Mask][Foreground mask][Result]
The Language - Part I Basic Arrays Arrays are a mathematical concept for storing related data in an orderly fashion. After Effects makes extensive use of JavaScript's implementation of arrays. I wish I didn't have to drag you through this but unfortunately if you want to get anywhere with expressions you're going to have to understand the concept of arrays. However, we'll keep it as simple as possible. Getting at the Data In JavaScript, you get at data in an array by using an "index". Array Syntax When you retrieve data from an array in JavaScript you enclose the index in brackets. myArray = [5,6,7,8]; So here we're using brackets to define the contents of the array "myArray". Let's look a simple example that demonstrates both uses. newX = position[0] + 10; newY = position[1] + 25; [newX,newY] Let's go through it line by line. Array Math Now we're going to take a quick look at basic array math. a = [100,150]; b = [200,250]; a + b The result of this is (as you might have guessed) [300,400].
All Things Motion - After Effects Tutorials & Resources Motion Boutique Newton 2.0.73 (Win/Mac) | Curso de After Effects y Montaje del CFP Motion Boutique Newton 2.0.73 (Win/Mac) Newton interprets 2D composition layers as rigid bodies interacting in a real environment. Newton provides many simulation controllers such as body properties (type, density, friction, bounciness, velocity, etc), global properties (gravity, solver), and allows the creation of joints between bodies. Once simulation is completed, animation is recreated in After Effects with standard keyframes. Main Features New Features 4 types of joint to link bodies Efficient and clean user interface Better support of shape layers Magnetism system Gravity scale, convex hull, fixed rotation Scene snapshots, actions history, comprehensive user’s guide… Compatibility Newton 2.0.73 (Win/Mac) Copiar la carpeta NEWTON en la carpeta de Plugins. Usuarios de Mac: NO renombrar el archivo “Newton_trial.plugin” NOTA: El Plugin no aparece en la ventana de Effects. Me gusta: Me gusta Cargando... Relacionado Plug-ins Zaxwerks 3D para AE (Win/Mac)