However, new users may not know about it because it is hidden away under a shape layer submenu. Trim Paths is a tool in Adobe After Effects that allows you to make precise adjustments to shape layer paths. You can then edit the path using any of the Pen tools from the toolbox.In this video tutorial, we cover how to harness the power of this simple, hidden feature in Adobe After Effects - Trim Paths. After you create the selection, you can easily transform it into a path by clicking the Make Work Path icon at the bottom of the Paths palette. For example, you can use Quick Mask to paint a selection, or you can use the Magnetic Lasso tool. You can also use any other method described in this book to create a selection. After evaluating the stroke results, reselect the path (by clicking with one of the Pen tools) and continue building the effect. After you apply each stroke, you may want to deselect the path in the Paths palette. It can be hard to evaluate the effect of the stroke while the path is selected because the outline of the path obscures the image edge. Deselect the path in the Paths palette to view the effect unobscured by the path. This intensifies the stroke as it gets close to the object, simulating the glow effect. Each time you reapply the stroke, select a smaller brush size and increase the pressure. Restroke the path several times by repeating Steps 4 and 5. In the Stroke Path dialog box that appears, click OK to apply the stroke using the brush settings specified in Step 4. With the new path selected in the Paths palette, select Stroke Path from the palette menu. Select the Airbrush icon in the Options bar and set the Flow and Opacity as desired. Click the Brush icon and set the Master Diameter slider for the brush size. In the Options bar, drag the Pressure slider to about 8% or 10% percent and select a very large feathered brush. Select the Paintbrush tool in the toolbox.
Then choose Select, Inverse to deselect the object and select only the background.ĭouble-click the Foreground color swatch in the toolbox after the Color Picker opens, select a color for the glow.
With the path tile selected, choose Make Selection from the palette menu and click OK in the Make Selection dialog box that appears. Use the techniques described in Part 3, "Selection Techniques," to draw a path around the desired object.Ĭhoose Window, Paths to open the Paths palette. It also works to separate the object from its background.Ĭhoose File, Open and select the file you want to modify. In addition to having aesthetic appeal, the effect described in this task works well when you're silhouetting an object against a white or dark background. You can add an effect around a featured object that looks like a glowing halo that softly fades into the background.
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