Vector Paint effect



For most drawing and painting tasks, use shape tools and paint tools, not the Vector Paint effect.

For more information, see Paint tools and paint strokes and Overview of shape layers, paths, and vector graphics.

This effect works with 8-bpc and 16-bpc color.

Original (upper-left), brush stroke with selection spline (lower-left), and second stroke created with Wiggle control (lower-right)

Vector Paint strokes are made up of many tiny points that create the stroke path. You cannot isolate or adjust these individual points, but you can affect them using Vector Paint features such as smoothing and wiggling. The wiggling of a stroke is created by manipulating and displacing these points along the stroke path.

Vector Paint strokes are nondestructive, so painting and erasing actions affect only the appearances on a layer; they don’t alter the original source file of any image on the layer. All paint strokes are recorded and stored as they are drawn, so you can make the strokes appear in various sequences, such as animated over time or all at once.

For animated strokes, the exact timing (real time) you used to draw the strokes can be played back and rendered. You can adjust the playback speed to fit the timing you want. You can also create new strokes by blending existing strokes, both in space and in time.

Vector Paint supports the pressure-stylus and erase functions of Wacom and Creation Station tablets.

Note: The Vector Paint options menu contains some unique commands and settings that are otherwise unavailable. Open this menu by clicking the Vector Paint toolbar options button when a Vector Paint painting tool is selected.
When you use Vector Paint on a layer, you can start over at any time by deleting all strokes or the Vector Paint effect itself. To delete the effect, select Vector Paint in the Effect Controls panel and press Delete or Backspace.

Paint with the Vector Paint effect

  1. Select the Selection tool  in the Tools panel.
  2. In either the Composition or Timeline panel, select the layer on which you want to paint.
  3. Choose Effect > Paint > Vector Paint. The Vector Paint effect appears and is selected in the Effect Controls panel, and the Vector Paint toolbar appears on the left side of the Composition panel.
    Note: This toolbar appears only if Vector Paint is selected (highlighted) in the Effect Controls panel. If the rulers in the Composition panel interfere with your view of the Vector Paint toolbar, deselect View > Show Rulers.
  4. Select the Vector Paint painting tool you want to use from the Vector Paint toolbar.
  5. In the Effect Controls panel, select the options you want for Brush Settings and Composite Paint.
  6. In the Timeline panel, move the current-time indicator to the appropriate point in time.
  7. In the Composition panel, drag to draw strokes on the layer.
    To quickly set your brush Radius and Feather amounts as you paint, press Ctrl (Windows) or Command (Mac OS) and click anywhere in the Composition panel; then drag in or out to resize the brush. When you release the Ctrl or Command key, you can then drag in or out to resize the feather.

Vector Paint tools

Vector Paint tools in Composition panel

You can use three tools in the Vector Paint toolbar to work with Vector Paint:

Selection tool 
Select a stroke by clicking or dragging across it. You can drag across several strokes to select them simultaneously. You select strokes to edit or delete them.

Paint tool 
Paint directly on the layer, using settings defined in the Effect Controls panel. When you use the Paint tool, the pointer appears as a circle (or square) in the actual size of the brush.

Eraser tool 
Erase areas of the layer, using Brush Type settings defined in the Effect Controls panel. The Eraser pointer appears as a circle with an X through it. If you use an installed tablet with stylus eraser support, Vector Paint automatically switches to eraser mode when you use the stylus eraser.
Clicking the active tool (Selection, Paint, or Brush) in the Vector Paint toolbar deactivates painting and hides the other buttons in the toolbar. You can then drag and scale the layer. To reactivate the toolbar, reselect one of the three Vector Paint tool buttons.

Work with Vector Paint brushes

Vector Paint includes three brush types: Paint, Air, and Square. These brush types define the shapes and performance of both the Paintbrush tool and the Eraser tool. All brush types but the Air brush include a Feather setting.

 Do one of the following:
  • In the Vector Paint toolbar, click the Paint , Air , or Square  button.

  • In the Effect Controls panel, click the current Brush Type setting (Paint, Air, or Square) repeatedly to cycle through the brushes until the one you want is selected.

    With increased Feather and reduced Opacity settings, Paint brush strokes may resemble Air brush strokes. However, when you paint a single stroke that crosses itself, the two brush types produce different results. Air brush strokes build up opacity as the stroke crosses itself. Paint brush strokes don’t build up opacity within the same stroke, whether they cross themselves or not. To increase opacity with Paint brush strokes, create multiple strokes over the area (like multiple coats of paint).
    Note: Each brush type is also available for the Eraser tool. When the Eraser tool is selected in the Vector Paint toolbar, the name appears with “-E” after it in the Effect Controls panel. Also, if a tablet is installed and the stylus has eraser support, Vector Paint automatically switches to eraser mode when you use the stylus eraser.

Brush Settings controls

Radius
Controls the size of the brush or eraser.
If you press Alt (Windows) or Option (Mac OS) when clicking the question mark representing the Radius value, a Set Value dialog box appears. You can then type a Relative Radius, reducing the radius of each stroke by that percentage. The default value is 100%, which produces no change in the stroke radii.

Feather
Controls the softness of brush or eraser edges (but doesn’t affect the airbrush).
When you drag to change Radius, Feather, or Opacity values, hold down Ctrl (Windows) or Command (Mac OS) to reduce the size of the increments. To change the value by larger increments, hold down Shift as you drag.

Opacity
Controls the transparency of the paint or erasures.

Brush Type
Shows the brush type you selected in the Vector Paint toolbar in the Composition panel.

Color
Represents the paint color used to draw strokes. Select a new color by clicking the Color swatch and then using the Color Picker, or by using the eyedropper to sample a color from the desktop.

When one or more strokes of the same color are selected, this swatch displays the color of those strokes. You can change the color of the selected strokes.

Color Clone
When Color Clone is turned on, the brush behaves like a combination eyedropper and brush. The pixels at the position where the stroke begins determine the color of the stroke. The Color swatch in the Brush Settings group in the Effect Controls panel displays the new sampled color. When you begin another stroke, a new group of pixels is sampled and used to color that stroke.

The Color Clone affects strokes only while you draw; it has no effect on an already completed stroke. This brush setting is the only one you can’t apply after drawing. Clicking either the eyedropper or Color swatch turns off the Color Clone feature.

Stylus
The Radius option affects stylus sensitivity. When you select this option, the pressure of the pen on the tablet changes the weight of the stroke as it is drawn. Lighter pressure decreases the radius (creating a thinner stroke), and increased pressure increases the radius (creating a wider one). The Radius value setting indicates the maximum radius amount. Use the tablet settings to adjust the pressure-width sensitivity for the pen.
Note: You can choose Stylus Radius even if no tablet is installed. This option affects strokes when wiggling is enabled.

The pressure variation of the pen on the tablet alters the opacity of the stroke as you draw. Light pressure results in lower opacity values, while increased pressure creates more opaque strokes. The Opacity value defines the maximum of the Opacity range.

Selecting and editing Vector Paint strokes

When you select a single stroke or strokes with the same Brush Settings, you can edit the enabled Brush Settings in the Effect Controls panel. Your changes to the strokes immediately appear in the Composition panel as you complete them.

When you select multiple strokes that have different Brush Settings, a question mark [‑?‑] appears next to that Brush Setting in the Effect Controls panel. If you edit that value, all of the selected strokes are reset to the new value.

To edit a specific paint stroke, select it using the Selection tool  on the Vector Paint toolbar and click or drag, or choose Select from the Vector Paint options menu. You can select and then move, revise attributes, or delete either a paint stroke or erasure stroke.

Use the following commands from the Select option in the Vector Paint toolbar option menu to select and edit paint strokes:

Note: Some options are tied to the current position of the current-time indicator in the Timeline panel.
All
Selects all strokes on a layer.

None
Deselects all strokes on a layer (available only if some strokes are selected).

Visible
Selects all strokes visible at the current frame.

Current Time
Selects all strokes that were drawn at the current time position. (Playback Speed doesn’t affect the original start time of strokes.)

Last Painted
Selects the last-painted brush stroke (or erase stroke). If you painted several strokes with the Shift key held down, this command selects that group of strokes.

Similar
With one or more strokes selected, this command selects additional strokes with similar Brush Settings properties. If strokes with dissimilar properties are initially selected, this command selects a broader range of strokes.

Inverse
Toggles to a selection of all unselected strokes, leaving the previously selected strokes unselected.

After you select one or more strokes, you can transform them, such as by rotating, scaling (vertically, horizontally, or both), or nudging (repositioning one pixel at a time).

Tools for editing paint work with Vector Paint

Use the following tools in the Vector Paint toolbar in the Composition panel to revise your paint work:

Undo button 
Click the Undo button to cancel your most recent single painting action, if it can be undone. If the action cannot be undone, this tool is dimmed (not available). You can also undo paint actions by using the Undo command on the Vector Paint options menu or by pressing Ctrl+Z (Windows) or Command+Z (Mac OS).
Note: Don’t use the Undo command on the Edit menu to undo Vector Paint actions.

Eyedropper  
Use the eyedropper to select a color to paint with from a sampling anywhere on the desktop. Press the Escape key to cancel the eyedropper.
Note: By default, the eyedropper samples a single pixel. Hold down Ctrl (Windows) or Command (Mac OS) and click the eyedropper to sample a 3-x-3-pixel average. Hold down Shift and drag to sample a range of multiple pixels.

Color swatch  
Displays the current selection as a solid color. When clicked, it opens the Color Picker dialog box. If the Opacity setting is less than 100%, the Color Swatch icon appears checkered, not solid.
If Color Clone is enabled in the Effect Controls panel, this swatch represents the sampled color. Shift-click the Color Swatch to open the Set Value dialog box for Opacity without turning off Color Clone.

Smoothing a Vector Paint stroke

The Smoother command in the Vector Paint options menu removes points from a selected stroke or strokes. This action simplifies stroke paths, smoothing out the curves. By eliminating unneeded points, the Smoother command can also dramatically reduce the size of the project file if you have complex drawings composed of many strokes.

When you select a path and choose Smoother, a dialog box appears in which you can type a Max Error value. This value sets the tolerance for the smoothing. Higher values remove more points on the path, resulting in a smoother stroke. Values can range from 0 through 100. The default value, 1.0, removes only redundant points, maintaining details in the stroke.

After you click OK in the dialog box, the stroke paths immediately reflect the smoothing in the Composition panel.

Smoothing cannot be undone. Removing these points may alter the shape of the path. If you want to preview the results, create a duplicate of the layer and apply Smoothing to test the result. If the results are satisfactory, then apply the command to the original layer.

Configure a stylus for Vector Paint (Windows only)

You can specify preferences for a Wacom or Creation Station tablet in several areas of the After Effects interface.

Note: Using a tablet with the Vector Paint effect isn’t supported in Mac OS. You can, however, use a tablet with the standard paint tools and the Paint effect.
 In the Vector Paint Preferences dialog box, click Options in the Effects Control panel, and select the following preferences:
Stylus Vendor
Tablets aren’t supported in Vector Paint on Mac OS. “Unknown” appears.

Use High Res. Coordinates
If this option is selected, data is recorded at high resolution (if supported by the stylus). This setting overrides normal mouse coordinates to use the higher resolution of the tablet, recording strokes with greater precision and subpixel precision.
Note: Wacom tablets don’t support the High Res. Coordinates option if Proportional mode is selected in the Wacom control panel.

If you experience offset coordinates with the pen, try the following:

  • Check that screen resolution and monitor settings haven’t changed.

  • If using a Wacom tablet, make sure that the tablet-mapping aspect isn’t set to Proportional. Select To Fit mode or One To One mode instead.

  • Restart the computer.

  • If all else fails, deselect Use High Res. Coordinates. Subpixel precision is lost, but Pressure and Eraser modes are still available.

Play back your painting with Vector Paint

Use the Playback Mode pop-up menu in the Effect Controls panel to specify when and how quickly your strokes appear in a composition. When you draw strokes, Vector Paint records information for the stroke start time and the drawing time of each stroke (in real time). The playback mode you select determines when a stroke starts and for how long it appears. You can set the speed at which the strokes play back using Playback Speed.

Play back your strokes using standard (spacebar) preview or RAM preview, or by viewing the results of a rendered composition.

Note: Regardless of how you record your strokes and which Playback mode you select when recording, you can always switch to another Playback Mode at any time.

While the playback mode chosen affects what you see during playback, it also determines what you see while you are drawing strokes. Onion Skin mode, for example, is used primarily while drawing strokes, and then another mode is selected before rendering.

Note: Note the position of the current-time indicator when you begin drawing strokes. This position affects the appearance of strokes in all modes except All Strokes.

Adjust the following controls to affect the way that strokes appear in the composition:

All Strokes
Displays all strokes for the full duration of the layer, regardless of the position of the current-time indicator when you drew them.

Past Strokes
Displays strokes from the time at which they were recorded until the end of the layer (the Out point).

Hold Strokes
Displays strokes from the frame on which they were drawn and holds them only until the point at which the next stroke was drawn. This mode treats strokes like Hold keyframes; as a stroke appears, it replaces the next, as in a slide show.

Animate Strokes
Begins drawing the stroke at the current time (that is, at the frame where the current-time indicator is when you draw the stroke). The stroke animates in the same way as it was drawn.

Current Frame
The default Draw Strokes setting. This mode displays the stroke only at the frame at which it was painted.

Onion Skin
Displays strokes drawn on the current frame plus strokes drawn on the surrounding few frames. These additional strokes appear color-coded and at reduced opacity, to distinguish them from the strokes on the current frame. Those strokes actually exist only on the frames in which they are drawn. Onion-skinning is useful for drawing frame-by-frame animations because it gives you reference points for the stroke positions.
Use the Onion Skinning options in the Vector Paint Preferences dialog box to specify how previous and forward strokes appear when Onion Skin is the active playback mode. (To open Vector Paint Preferences, use the Vector Paint options menu and choose Options.) These options include the following:
Frames Backward/Frames Forward
Sets the number of frames backward or forward that are displayed. Both backward and forward frames are displayed unless one or both of these values is set to 0.

Color Backward/Color Forward
Sets the color of the display of backward and forward strokes.

Skin Opacity
Sets the percentage of opacity for onion skin strokes.

Adjust the playback speed for the Vector Paint effect

The Playback Speed value in the Effect Controls panel can change the timing at which painted strokes appear in previews and rendered compositions. Playback Speed affects the Vector Paint strokes only if you set Playback Mode to Past Strokes, Hold Strokes, or Animate Strokes.

When you create strokes on a layer, the stroke is tied to the location of the current-time indicator in the Timeline panel when you start drawing. Vector Paint also records the amount of time you take to draw the stroke. For example, you might start painting a stroke with the current-time indicator set to 0:00 and use 1.5 seconds to draw the stroke. Then, you might move the current-time indicator to 2:00 and draw a second stroke (leaving 0.5 seconds between the completion of the first stroke and the beginning of the second one). For this example, let’s say you use 1.0 second to draw the second stroke. The entire process covers 3.0 seconds on the timeline.

By changing the playback speed, you can change the timing for stroke appearances in previews and rendered compositions.

  1. In the Effect Controls panel under Vector Paint, make sure that Playback Mode is set to Past Strokes, Hold Strokes, or Animate Strokes.
  2. In the Effect Controls panel, click the underlined Playback Speed value and type a new value, using a number in the range 0–100.

    You can also change the playback speed by dragging the value itself or the slider below it: drag left to decrease the speed; drag right to increase it.

    For animations, always begin painting strokes at the layer In point, especially when adjusting Playback Speed. This workflow locks the In point (start time of the first stroke) to the In point of the layer, making it easier to locate the beginning of the animation. Then, simply place the In point of the layer where you want the animation to begin in the composition.

    The results that your changes produce depend on the Playback Mode setting:

    Animate Strokes
    With the Playback Speed at 1.0, each stroke appears as if drawn by an unseen hand, taking the same amount of time as you used to create it. When you increase the Playback Speed value, you reduce the time it takes to draw each stroke and the gaps between strokes. If you decrease Playback Speed, both the time taken to draw the strokes and the length of the gaps between strokes increase. Using the example above, if you increase the Playback Speed value to 2.0 (double the speed), the first stroke would be drawn in 0.75 seconds, the gap between the two strokes would be shortened to 0.25 seconds, and the second stroke would be drawn in 0.5 seconds. The entire animation would be complete after 1.5 seconds of playback.

    Past Strokes
    With the Playback Speed at 1.0, each stroke appears in completed form at the frame in which you started drawing and remains visible for the duration of the layer playtime. When you increase Playback Speed, each stroke appears at an earlier point in time. If you decrease Playback Speed, strokes occur at later points in time.

    Hold Strokes
    Like Past Strokes mode, each stroke appears in completed form at the frame in which it was drawn. However, in Hold Strokes mode, each stroke disappears when the next stroke appears (without any gap between them). Otherwise, the results of changing Playback Speed are similar to the results in Past Strokes mode.

Change playback time with the Vector Paint Re-timer

The results from using the Re-timer or changing the Playback Speed value are similar but have important differences:
  • You apply the Re-timer to individual strokes you select before choosing the Re-timer option. In comparison, changes in Playback Speed apply to all paint strokes on the layer.

  • The Re-timer affects only playback that uses Animate Strokes mode. Playback Speed changes can also influence Hold Strokes and Past Strokes modes.

  • The Re-timer does not affect the start times of strokes. Changing the Re-timer value shortens or lengthens the amount of time previews and rendered versions take to draw the stroke. The strokes begin to appear at the same points in time as before, but they are drawn more quickly or more slowly.

  • The values for Re-timer are percentages of the original time required to draw the stroke. The default value is 100%. A higher value causes the drawing time to increase, so that a setting of 200% uses twice the time to draw the selected strokes. A lower value draws the selected strokes more quickly.

  1. Using the Vector Paint Selection tool , click or drag to select the strokes.
  2. From the Vector Paint options menu, choose Re-timer.
  3. In the Set Value dialog box, type a value for Relative Duration (%), and click OK.
    Note: You cannot use the Undo command to reverse the Re-timer after you apply it. However, you can apply the Re-timer again, using the inverse of the value you typed previously to revert to the original value. For example, if you changed the Re-timer value to 200% and then wanted to go back to the earlier setting, choose Re-timer again and type a value of 50%.

Paint using QuickPaint mode in Vector Paint

Ordinarily, when you draw strokes with Vector Paint, those strokes are associated with the position of the current-time indicator. After you draw a stroke, you can draw more strokes at the same time setting or at different time settings. The results you see when you preview or render the composition depend on your Playback Mode setting. The Shift-Paint Records controls change the way that strokes associate with time settings, called QuickPaint mode. One of the advantages of this feature is that you can create fast continuous recordings of a sequence of strokes without redraw delays after each one.

  1. From the Vector Paint options menu, choose Shift-Paint Records, and then choose a Shift-Paint Records option:
    Note: You cannot apply a Shift-Paint Records option to strokes you’ve already created.
    To Current Frame
    Specifies that all strokes start at the current frame (the current-time indicator position when you draw the strokes). The result is similar to ordinary painting mode except that Shift-Paint Records has no redraw delays.

    To Sequential Frames
    Specifies that all stroke start times are offset by one frame. The next frame is calculated according to the composition frame rate at the time of drawing. For example, if the current-time indicator is at 0:00 when you draw three strokes, then the start point is 0:00 for the first stroke, 00:01 for the second stroke, and 00:02 for the third stroke.

    In Realtime
    Specifies that stroke start times are determined by how they are drawn. The strokes are recorded and played back in real time even if you lift the brush while drawing. Strokes play back exactly as they were recorded, including any time that elapsed (gaps) between the creation of the strokes (if you continued to hold down Shift during the time gap).

    Continuously
    Specifies that stroke start times follow one another, without any gaps. When one stroke is finished drawing, the next one begins immediately. Otherwise, the result is similar to the In Realtime option.

  2. Press Shift as you paint.

    When you paint, the Info panel displays the name of the selected Shift-Paint Records option.

Wiggle controls for the Vector Paint effect

Enable Wiggling
If selected, all strokes on the layer are set to wiggle using the Wiggle Control values set in the Effect Controls panel.

Wiggles/sec
Determines the number of wiggles per second of composition time. Wiggling is spline-based morphing of paint strokes. Wiggles/sec controls the speed at which the change occurs. For example, in a 30-fps composition, setting the Wiggles/sec value to 30 creates one wiggle per frame. Lower values result in a smooth animation of morphing strokes. Higher values create more rapid wiggling.

Displacement Variation
Determines how far the stroke moves from its original position while wiggling. The greater the value, the greater the deviation in shape.

Displacement Detail
Determines how much the original shape of the path is altered while wiggling. Greater values increase the detail of displacement (or change in shape) in the stroke. Lower values produce less displacement, leaving the path closer to its original shape.

When Displacement Detail values are set high, the stroke may not resemble its original shape at all. This approach is useful in creating randomly animated strokes.

Set the Displacement Detail value by using the slider in the Effect Controls panel (preset to values in the range 0–100) or by clicking the underlined Displacement Detail value and typing a number in the range 0–1000.

Pressure Variation
Determines how much the Radius and Opacity values of the stroke vary while wiggling. For strokes that have Stylus Radius enabled, the Radius wiggles. For strokes that have Stylus Opacity enabled, the Opacity wiggles. The amount of variation in either the Radius or Opacity value while wiggling depends on the value specified for Pressure Variation. The Radius and Opacity settings in the Brush Settings act as maximum amounts, not to be exceeded while wiggling.
Note: Strokes that don’t have either Stylus Radius or Stylus Opacity options selected aren’t affected by the Wiggle Pressure Settings. However, these options can be enabled even if a tablet isn’t installed.

In the Effect Controls panel, set the Pressure Variation value by clicking the underlined Pressure Variation value and typing a number between -30,000 and 30,000, or by dragging the Pressure Variation slider.

Pressure Detail
Determines how tight the pressure variation appears along the stroke. Higher values create more dense variations.

Individual Stroke Seeds
If selected, this option creates a different random wiggle seed for each stroke on a layer.

Because the wiggle controls apply to all strokes on a layer, the wiggle parameters are always the same. To randomize the wiggling of the individual strokes, select the Individual Stroke Seeds option.

If Individual Stroke Seeds isn’t selected, all strokes use the same wiggle seed, so they all have the same spatial wiggle values. For example, two strokes exactly on top of each other wiggle equally. By setting individual seeds for each stroke, you avoid identical strokes wiggling in the same way.

Composite Paint options

Various options control the way Vector Paint composites strokes on a layer. Select the option you want in the Effect Controls panel for a layer, from the Composite Paint menu under Vector Paint. These options control two things: what you see in the Composition panel as you work, and what aspects of the layer the strokes affect, including what happens when you preview and render the composition.

As you paint and erase, you can either hide or display the footage image. You have similar viewing options when you paint using matte and alpha channel options.

As you work, painting and erasing can block pixels in an original image, such as a footage file or solid. You can also paint on a virtual layer above or below that image (although the virtual layer doesn’t appear as a separate layer in the Timeline panel). You can paint and erase to adjust mattes and alpha channels for the original image. You can restrict Vector Paint strokes to the areas inside or outside the original alpha channel.

Each Composite Paint option specifies a unique combination of work view, layer type (image, matte, or alpha channel), and placement of strokes relative to the original image. You can select strokes later and change the Composite Paint option, but it’s a good idea to understand what results each option produces before you start painting.

The following illustrations use the same basic example of an imported image. A paint stroke has been applied, followed by an erasure stroke. The original image is the green layer, including an alpha channel that reveals the background layer.

Composite Paint options

A. In Original (default setting), before painting
The imported image is visible.

B. In Original, with paint stroke
The paint strokes appear above the original image.

C. In Original, with paint stroke and erasure stroke
An erasure stroke removes underlying portions of both the paint stroke and the original image.

D. Only
The original image on the layer doesn’t appear in the working view; only paint strokes are shown. Erasures remove only paint, not the original image.

E. Over Original
The original image is visible in the working view, similar to the In Original option. Painting and erasing occur as with the Only option: Erasing removes pixels from underlying paint strokes but doesn’t alter the original image.

F. Under Original
The layer image is visible in the working view. Painting doesn’t alter the original image; it affects only areas of the layer that are outside the original image. Erasures remove only paint pixels, not the original image.

G. Track Original Matte
The original image isn’t visible in the working view. Paint strokes are visible. Painting affects only the area within the original image alpha channel (that is, paint applied within the original circle area). Erasures remove only existing paint pixels.

H. Track Original Matte Visible
The original image is visible in the working view. Otherwise, Vector Paint strokes behave exactly as with Track Original Matte, so erasures don’t affect the original image.

I. As Matte
Before you paint, nothing is visible in working view. Paint strokes affect only the matte, revealing the underlying original image. Erasures add back areas of opacity, so that they appear to erase the underlying image again. Both types of strokes are restricted to the area of the original alpha channel.

J. As Inverse Matte
Before you paint, the original image is visible in the working view. Painting affects only areas within the original image alpha channel. Paint strokes block (rather than reveal) the original image, appearing to erase the original image. Erasures remove only painting strokes; that is, they re-reveal the underlying image within the alpha channel.

K. In Original Alpha Only
The original image appears within its alpha channel in working view. Strokes affect the alpha channel itself. Painting adds areas of opacity. Erasures add areas of transparency.
Note: You don’t need to switch colors when you paint in the alpha channel, even if you paint with gray. The changes to the opacity of the painted area are determined by the values shown for Opacity and Feather under Brush Settings in the Effect Controls panel, not by the color of paint.

L. Under Original Alpha Only
The original image appears within its alpha channel in working view. Strokes don’t affect the original image alpha channel, only areas outside it. Painting adds areas of opacity; erasing restores transparency to painted areas only.
Note: The difference between using Under Original and Under Original Alpha Only is that in the latter, strokes affect only the alpha channel; RGB is unchanged.

Select Vector Paint preferences

Use the Vector Paint Preferences dialog box to customize the way you view your work in Vector Paint. Unlike most other effects, the options you select as Vector Paint preferences apply to all your Vector Paint work, both on the current layer and on other layers. Your current preferences are also used for subsequent sessions of Vector Paint.

  1. Select Vector Paint in the Effect Controls panel and open the Vector Paint Preferences dialog box in any of the following ways:
    • Click the menu button  in the Vector Paint toolbar in the Composition panel, and choose Options.

    • Right-click (Windows) or Control-click (Mac OS) anywhere in the Composition panel, and choose Options.

    • In the Effect Controls panel, click Options to Vector Paint.

  2. Choose the appropriate options.
    Note: Better Preview While Drawing is temporarily disabled in low-memory situations, and Draft quality is used instead. Also, if the preview doesn’t draw correctly, you may have an incompatible video card.