Time Remapping - commonly used to make 'velocity edits' and speed ramping transitions. It's the easiest and most ideal method used to create create all sorts of speed and time related effects in your Composition. In this guide, we'll show you how to use time remapping in After Effects, as well as how to create cool visuals with the tool.
Time remapping is a powerful feature in After Effects that allows you to adjust the speed and duration of a video clip. With time remapping, you can stretch or compress the timeline of a clip, create slow motion or fast motion effects, and even create loops. You can control time remapping using keyframes, expressions, or the graph editor. Time remapping is useful for a wide range of applications, such as adjusting the pacing of a video, matching the speed of one clip to another, or creating special effects. By understanding how to use time remapping, you can add a new level of creativity and control to your After Effects projects.
How to open time remap in after effects? Simply right click on the layer that you wish to apply the time remapping tool to, then go to time > enable time remapping. The two start and finish keyframes will now appear along your layer.
To slow down a clip with time remapping. Drag either the start or finish keyframe away from each other. You can also edit the timestamp of each keyframe to a lower duration to slow down the clip.
Speed up your footage with time remapping by bringing the start and finish keyframes closer together.
To stretch the timeline of the layer, drag the starting keyframe to the right. This will cause the duration of the layer to increase, and the speed of the layer will slow down. To compress the timeline of the layer, drag the finishing keyframe to the left. This will cause the duration of the layer to decrease, and the speed of the layer will increase. You can also stretch or compress the timeline of the layer by right-clicking on the Time Remapping property and selecting "Edit Value" to access the Graph Editor. In the Graph Editor, you can use the handles on the speed graph to precisely adjust the speed of the layer over time.
Linking time remapping to expressions and layer properties in After Effects allows you to create dynamic and interactive animations. By linking time remapping to a layer property, such as position or scale, you can create animations that speed up or slow down based on the value of that property. By linking time remapping to an expression, you can use code to control the speed of the layer based on any number of factors, such as the current time or the value of another layer property. This can open up a wide range of creative possibilities and allow you to create complex animations with ease. To link time remapping to a layer property or expression, hold down the Alt key and click and drag the Time Remapping property onto the desired property or expression.
Place a keyframe with the starting timecode of the clip exactly one frame after the final keyframe of the clip to create a loop.
Freeze frames can be created easily in After Effects by setting a time remapping keyframe to 'Hold'. Another way to do this by through time remapping is by creating two time keyframes with the same timecode, and placing them apart from each other for the duration that you would like the freeze frame to last for.
You can also just use CTRL + Shift + D to cut a layer, then select the layer before right clicking and selecting Time > Freeze Frame.
Enable time remapping on any layer by pressing CTRL + T on Windows or Command + T on Mac.
If the option to add time remapping to your layer is grayed out, this may be due to complex animations on the layer. to fix this, simply pre-compose the layer and move all attributes to the precomp, then try to add time remapping again in the main comp.