After EffectsFeature

How to move from Photoshop to After Effects

Here are seven ways that you can apply your existing knowledge to start making your images move.

Getting into motion design and After Effects can be quite intimidating – but there are a lot of similarities between Adobe's motion tool and Photoshop. After Effects is a complex, huge application that takes a long time to master – just like Photoshop. With some patience and taking your existing skills across, you can master the basics in no time at all. A seasoned Photoshop user should be able to get up and running within a weekend, if not a day.

Like any tool, After Effects presents the features you need to create stunning moving images and motion graphics – and it's up to you to have the ideas and software solutions to make them happen. Just like in Photoshop, a little experimentation goes a long way.

01. The Timeline

Click the image to enlarge

Probably the most unfamiliar thing about After Effects users will be the timeline. After all, you're now dealing with moving, not static imagery. If you've played around with Photoshop CS6's timeline you're already on the right track (no pun intended).

Take a look at the After Effects timeline in this screenshot: you'll notice there are layers just like Photoshop (we've outlined this in more detail below) along with properties of that layer. Next to each property is a stopwatch icon. This enables you to set keyframes that determine such properties as position, opacity, scale and so on – meaning you can animate these over time.

Auto keyframe

You can also set the timeline to auto-keyframe (the stopwatch icon second from the right, circled in the screenshot) meaning when you move a layer, mask and so on in the Composition window your keyframe will be recorded at that time. It's handy for tweaking movement.

So, with that in mind, import an image (JPEG, PNG or whatever) drop down the arrow next to the image name in the timeline, hit the stopwatch icon next to Position, drag the timeline marker to say 01:00s and then move the image in the composition window. Play back to see how it moves and experiment with different properties in the same way. Bringing keyframes closer to one another will speed up the animation.

02. Layers

A common feature across Photoshop and After Effects are layers. But in After Effects they work in a different way. There's no Layers panel in After Effects, rather layers are dealt with on the timeline. Layers in After Effects can be animated independently – and you can animate properties such as position, scale, rotation and opacity by using the dropdown arrow next to the layer name on the timeline.

When importing a multilayered PSD file, you are asked whether you want to merge layers or you can choose an individual layer – choosing to keep or ignore layer effects (you can add the equivalent of these in After Effects and animate them independently). So, in short, think of the timeline as your layers panel in which you build up an animation or motion piece – just as you would a still in Photoshop.

03. Adjustment Layers

Adjustment Layers are probably something you're very familiar with in Photoshop – and in the image-editing app work in a relatively formulaic way. You choose to add a new Adjustment Layer, then choose the type (Photoshop has preset options such as Brightness/Contrast, Hue/Saturation, different filters and so on) and adjust your opacity or create a mask as appropriate.

In After Effects, Adjustment Layers do the same thing but are much more flexible. By going to Layer>New>Adjustment Layer you set up a blank layer that you can then apply any effect to (by dragging the effect from the Effects and Presets panel directly onto the Adjustment Layer name in the Timeline). The Adjustment Layer affects – like Photoshop – the layers beneath it in the stack.

Just like Photoshop, you can use After Effects' masking tools to only reveal part of the adjustment layer (Ctrl+Right-click on the Layer and choose Mask>New Mask before drawing a freeform or set shape). Then you can animate either the adjustment layer, the mask (including feathering, opacity and shape) or both by using the arrow dropdown to the left of the layer or mask name.

04. Filters and Effects

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Just like Photoshop, After Effects has a myriad of effects and filters – both for creating special effects, tweaking footage or correcting colours. And just like Photoshop, you apply your effect to a layer, or group of layers (but unlike Photoshop, you apply a mask to hide or show the effect rather than applying to a selection in the first place).

There are two ways of quickly applying an effect to a layer. You can either drag it from the Effects & Presets panel directly to the layer in the composition window (a bounding box will appear showing you which layer it will be applied to); or, if you have many layers, you can simply drag it from the Effects & Presets panel onto the layer name. Its properties can then be animated over time in the normal way. You can apply multiple effects to a layer, the resulting effect determined by how the effects are layered in the stack.

05. Masks

Masks in After Effects work in a similar way to Photoshop or any image-editing application – in that they show or hide what's on the layer that they are attached to. Like Photoshop, you can set up multiple masks on an After Effects layer. And of course you can animate the properties. Like we mentioned in tip 03, you add a mask by either selecting the Layer and going to Layer>Mask>New Mask or Ctrl+Right-clicking on the layer in the timeline and selecting the same option.

Masks are drawn either using the shape tools or the Pen tool found in the main tools panel. You can also paint masks by selecting the brush tool, going to the Paint panel and chaining the channel dropdown to Alpha. Then, in the timeline, double-click the layer you want to be transparent. Next, paint black for transparent, white for opaque – the same as you would do when creating a layer mask in Photoshop.

06. Rotoscoping

Another option for masking is the Rotobrush tool (CS5 or later, found in the main tools panel) which acts very much like Photoshop's quick selection, enabling you to isolate a moving object over time with relative ease (although you will need to clean up points). To use this, first select the tool from the main tools panel, then double click the layer in the timeline you wish to work on. Then, begin to paint ovate object you want to cut out.

You can change the brush size by Ctrl or Cmd-dragging on the canvas (rather than using the [ and ] keys like you would in Photoshop). There are many other masking options in After Effects – but these are the basics. Masks and selections are indeed a little more complex than in Photoshop, but adhere to the same basic principles.

07. Rendering

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Unlike Photoshop (unless you're creating a movie or 3D file) when you've completed a sequence in After Effects you'll need to render it. This essentially means taking all the objects and footage you've animated and putting it together as one file (or a sequence of files).

After Effects has a RAM preview – which allocates RAM to play video and audio in the Timeline, Layer, or Footage panel at real-time speed. You can, for the most part, just use Spacebar to preview your project at any time – but this depends on the speed of your Mac or PC.

To Render, you need to set up the composition in the Render Queue. This is tabbed by default with the Timeline. Go to Composition>Add to Render Queue, then click on Best Settings next to Render Settings to choose a size and the quality (this is using the Render settings at its most basic). Hit OK and then click Lossless next to Output Module, choosing a format. When you're done, click on the name of your composition next to Output To to specify a save location.

Words: Rob Carney

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