Motion User Guide
- Welcome
- What’s new
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- Intro to basic compositing
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- Intro to transforming layers
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- Intro to transforming layers in the canvas
- Transform layer properties in the canvas
- Transform tools
- Change layer position, scale, or rotation
- Move a layer’s anchor point
- Add a drop shadow to a layer
- Distort or shear a layer
- Crop a layer
- Modify shape or mask points
- Transform text glyphs and other object attributes
- Align layers in the canvas
- Transform layers in the HUD
- Transform 2D layers in 3D space
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- Intro to behaviors
- Behaviors versus keyframes
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- Intro to behavior types
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- Intro to Parameter behaviors
- Audio behavior
- Average behavior
- Clamp behavior
- Custom behavior
- Add a Custom behavior
- Exponential behavior
- Link behavior
- Logarithmic behavior
- MIDI behavior
- Add a MIDI behavior
- Negate behavior
- Oscillate behavior
- Create a decaying oscillation
- Overshoot behavior
- Quantize behavior
- Ramp behavior
- Randomize behavior
- Rate behavior
- Reverse behavior
- Stop behavior
- Track behavior
- Wriggle behavior
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- Intro to Simulation behaviors
- Align to Motion behavior
- Attracted To behavior
- Attractor behavior
- Drag behavior
- Drift Attracted To behavior
- Drift Attractor behavior
- Edge Collision behavior
- Gravity behavior
- Orbit Around behavior
- Random Motion behavior
- Repel behavior
- Repel From behavior
- Rotational Drag behavior
- Spring behavior
- Vortex behavior
- Wind behavior
- Additional behaviors
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- Intro to using generators
- Add a generator
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- Intro to image generators
- Caustics generator
- Cellular generator
- Checkerboard generator
- Clouds generator
- Color Solid generator
- Concentric Polka Dots generator
- Concentric Shapes generator
- Gradient generator
- Grid generator
- Japanese Pattern generator
- Lens Flare generator
- Manga Lines generator
- Membrane generator
- Noise generator
- One Color Ray generator
- Op Art 1 generator
- Op Art 2 generator
- Op Art 3 generator
- Overlapping Circles generator
- Radial Bars generator
- Soft Gradient generator
- Spirals generator
- Spiral Drawing generator
- Use Spiral Drawing onscreen controls
- Star generator
- Stripes generator
- Sunburst generator
- Truchet Tiles generator
- Two Color Ray generator
- Save a modified generator
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- Intro to filters
- Browse and preview filters
- Apply or remove filters
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- Intro to filter types
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- Intro to Color filters
- Brightness filter
- Channel Mixer filter
- Color Adjustments filter
- Color Balance filter
- Example: Color-balance two layers
- Color Curves filter
- Use the Color Curves filter
- Color Reduce filter
- Color Wheels filter
- Use the Color Wheels filter
- Colorize filter
- Contrast filter
- Custom LUT filter
- Use the Custom LUT filter
- Gamma filter
- Gradient Colorize filter
- HDR Tools filter
- Hue/Saturation filter
- Hue/Saturation Curves filter
- Use the Hue/Saturation Curves filter
- Levels filter
- Negative filter
- OpenEXR Tone Map filter
- Sepia filter
- Threshold filter
- Tint filter
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- Intro to Distortion filters
- Black Hole filter
- Bulge filter
- Bump Map filter
- Disc Warp filter
- Droplet filter
- Earthquake filter
- Fisheye filter
- Flop filter
- Fun House filter
- Glass Block filter
- Glass Distortion
- Insect Eye filter
- Mirror filter
- Page Curl filter
- Poke filter
- Polar filter
- Refraction filter
- Ring Lens filter
- Ripple filter
- Scrape filter
- Sliced Scale filter
- Use the Sliced Scale filter
- Sphere filter
- Starburst filter
- Stripes filter
- Target filter
- Tiny Planet filter
- Twirl filter
- Underwater filter
- Wave filter
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- Intro to Stylize filters
- Add Noise filter
- Bad Film filter
- Bad TV filter
- Circle Screen filter
- Circles filter
- Color Emboss filter
- Comic filter
- Crystallize filter
- Edges filter
- Extrude filter
- Fill filter
- Halftone filter
- Hatched Screen filter
- Highpass filter
- Indent filter
- Line Art filter
- Line Screen filter
- MinMax filter
- Noise Dissolve filter
- Pixellate filter
- Posterize filter
- Relief filter
- Slit Scan filter
- Slit Tunnel filter
- Texture Screen filter
- Vignette filter
- Wavy Screen filter
- About filters and color processing
- Publish filter controls to Final Cut Pro
- Using filters on alpha channels
- Filter performance
- Save custom filters
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- Intro to 3D objects
- Add a 3D object
- Move and rotate a 3D object
- Reposition a 3D object’s anchor point
- Exchange a 3D object file
- 3D object intersection and layer order
- Using cameras and lights with 3D objects
- Save custom 3D objects
- Guidelines for working with 3D objects
- Working with imported 3D objects
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- Intro to 360-degree video
- 360-degree projects
- Create 360-degree projects
- Add 360-degree video to a project
- Create a tiny planet effect
- Reorient 360-degree media
- Creating 360-degree templates for Final Cut Pro
- 360-degree-aware filters and generators
- Export and share 360-degree projects
- Guidelines for better 360-degree projects
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- Intro to settings and shortcuts
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- Intro to Keyboard shortcuts
- Use function keys
- General keyboard shortcuts
- Audio list keyboard shortcuts
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- Tools keyboard shortcuts
- Transform tool keyboard shortcuts
- Select/Transform tool keyboard shortcuts
- Crop tool keyboard shortcuts
- Edit Points tool keyboard shortcuts
- Edit shape tools keyboard shortcuts
- Pan and Zoom tools keyboard shortcuts
- Shape tools keyboard shortcuts
- Bezier tool keyboard shortcuts
- B-Spline tool keyboard shortcuts
- Paint Stroke tool keyboard shortcuts
- Text tool keyboard shortcuts
- Shape mask tools keyboard shortcuts
- Bezier Mask tool keyboard shortcuts
- B-Spline Mask tool keyboard shortcuts
- Transport control keyboard shortcuts
- View option keyboard shortcuts
- HUD keyboard shortcuts
- Inspector keyboard shortcuts
- Keyframe Editor keyboard shortcuts
- Layers keyboard shortcuts
- Library keyboard shortcuts
- Media list keyboard shortcuts
- Timeline keyboard shortcuts
- Keyframing keyboard shortcuts
- Shape and Mask keyboard shortcuts
- 3D keyboard shortcuts
- Miscellaneous keyboard shortcuts
- Touch Bar shortcuts
- Move assets to another computer
- Work with GPUs
- Glossary
- Copyright
Luma Keyer filter controls in Motion
After you apply the Luma Keyer filter to a video or image layer in your project, you can refine the keying parameters in the Filters Inspector, which contains the following controls:
Basic controls
Luma: A grayscale gradient control with handles to adjust tolerance and softness in the matte. When you first apply the Luma Keyer filter to an image layer in Motion, the Luma control displays two handles: a Tolerance handle in the upper right, and a Softness handle in the lower left. Dragging the top handle to the left reveals a second tolerance handle. Together, these handles define the range of image lightness used to set the core transparency of the resulting matte. The range of lightness turned transparent is indicated by a checkerboard pattern behind the gradient. Two handles under the gradient define the softness, or edge transparency, of the key. (The second softness handle may not be visible until you drag the two tolerance handles left.) Dragging either of the lower softness handles farther out and away from the upper tolerance handles results in a key with softer edges. You can also drag the slope in the graph to adjust the softness handles.
Invert: A checkbox that, when selected, inverts which area is transparent and which is opaque.
Luma Rolloff: A slider to adjust the linearity of the falloff between the Luma control’s tolerance and softness handles. Modifying this parameter changes the softness of the matte around the edges in regions that are affected most by the Luma control. Decreasing the Luma Rolloff value makes the slope between the two handles of the Luma control more linear, which visibly increases edge softness. Increasing this value makes the slope between the handles of the Luma control steeper, sharpening the edges of the matte and making them more abrupt.
View: A group of buttons to switch among three keying preview modes in the canvas, useful for refining your key:
Composite: The leftmost button, when selected, displays the final composited image in the canvas, with the keyed foreground subject isolated against a transparent background, which lets layers underneath show through.
Matte: The center button, when selected, displays the grayscale matte, or alpha channel, generated by the keying operation. Areas in the matte that appear white are visible in the final composite; areas that appear black are transparent; and areas with shades of gray are semitransparent (lighter grays being more solid, and darker grays being more translucent). Viewing the alpha channel makes it easier to spot unwanted holes in the key, or areas of the key that aren’t transparent enough.
Original: The rightmost button, when selected, displays the original, unkeyed image in the canvas.
Matte Tools controls
Click the disclosure triangle in the Matte Tools row to reveal controls for post-processing the transparency matte generated by the previous sets of parameters. These parameters do not alter the range of values sampled to create the keyed matte. Instead, they alter the matte generated by the Luma and Luma Rolloff controls, letting you shrink, expand, soften, or invert the matte to achieve a better composite.
Fill Holes: A slider to adjust solidity in regions of marginal transparency throughout a key. This parameter is useful when you’re satisfied with the edges of your keyed matte but have unwanted holes in the interior of the foreground subject that you can’t eliminate using the Strength parameter without ruining edges. Higher slider values fill more holes in the solid areas of the keyed subject.
Edge Distance: A slider to adjust how close to the edge of your keyed subject the effect of the Fill Holes parameter gets. Reducing this parameter brings the solid, nontransparent area of the matte closer to the edge of the subject being keyed, sacrificing translucence at the edges in favor of filling unwanted holes at the edge of the keyed subject, or retrieving areas of semitransparent detail, such as hair, smoke, or reflections. Raising this parameter pushes the filled area of the matte farther to the interior of the subject, away from the edges, adding translucence to regions of the image that aren’t being keyed aggressively enough. Raising this parameter too much can introduce regions of unwanted translucence in parts of the subject that should be solid.
Levels: A grayscale gradient control to alter the contrast of the keyed matte. Drag this control’s three handles that set the black point, white point, and bias (distribution of gray values between the black point and white point). Adjusting the contrast of a matte can be useful for manipulating translucent areas of the key to make them more solid (by lowering the white point) or more translucent (by raising the black point). Dragging the Bias handle right erodes translucent regions of the key, while dragging the Bias handle left makes translucent regions of the key more solid.
Black, White, Bias: Click the disclosure triangle in the Levels row to reveal sliders for the Black, White, and Bias parameters. These sliders, which mirror the settings of the Levels handles described above, allow you to keyframe and apply Parameter behaviors to the three Levels parameters (via the Add Keyframe button to the right of each slider). Keyframing the Black, White, and Bias parameters may yield a better key, one that adapts to changing blue screen or green screen conditions.
Shrink/Expand: A slider to manipulate the contrast of the matte to affect matte translucence and matte size simultaneously. Drag the slider left to make translucent regions more translucent while simultaneously shrinking the matte. Drag the slider right to make translucent regions more solid while simultaneously expanding the matte.
Soften: A slider to blur the keyed matte, feathering the edges by a uniform amount.
Erode: A slider that you can drag to the right to increase edge transparency from the outer edge of the matte progressively farther into the interior of the keyed matte.
Light Wrap controls
Click the disclosure triangle in the Light Wrap row to reveal controls for blending color and lightness values from the background layer of your composite with the keyed foreground layer. Using these controls, you can simulate the interaction of environmental lighting with the keyed subject, making it appear as if background light wraps around the edges of a subject. In Motion, the Light Wrap operation blends light and dark values from the background with the edges of the keyed foreground subject, and can be used to create color-mixing effects around the edges of the solid part of a key to better marry the background and foreground layers of your keyed composite.
Light Wrap is the last operation in the image-processing pipeline. In other words, the light-wrap effect is added after every other image operation is processed, including filters, lights and shading, and other composited effects. As a result, Light Wrap accounts for any visual effect that might alter the look of the object it is applied to, yielding the most desirable result.
A separate Light Wrap option appears in the Blend Mode pop-up menu of the Properties Inspector for a selected layer or group in Motion. The Light Wrap blend mode in the Properties Inspector for a layer is ignored when you add a Luma Keyer filter to that layer and set the Light Wrap Amount parameter to a value greater than 0. (The Light Wrap parameters of the Luma Keyer Keyer filter take precedence.) However, if you set the Amount parameter of the Light Wrap group to 0, the Light Wrap blend mode becomes active again. Further, the Light Wrap blend mode in the Properties Inspector for a group overrides the Light Wrap parameters of any Luma Keyer filters in that group.
Amount: A slider to control the light-wrap effect, setting how far into the foreground the light wrap extends.
Intensity: A slider to adjust gamma levels to lighten or darken the interaction of wrapped edge values with the keyed foreground subject.
Opacity: A slider to fade the light-wrap effect up or down.
Mode: A this pop-up menu to choose a compositing method to blend the sampled background values with the edges of the keyed subject. There are five options:
Normal: Evenly blends light and dark values from the background layer with the edges of the keyed foreground layer.
Lighten: Compares overlapping pixels from the foreground and background layers, then preserves the lighter of the two. Good for creating a selective light-wrap effect.
Screen: Superimposes lighter portions of the background layer over wrapped areas of the keyed foreground layer. Good for creating an aggressive light-wrap effect.
Overlay: Combines the background layer with the wrapped areas of the keyed foreground layer so overlapping dark portions become darker, light portions become lighter, and colors become intensified.
Hard Light: Acts like the Overlay composite mode, except that colors become muted.
Additional controls
Preserve RGB: A checkbox that, when selected, preserves smooth graphics and text. Some images may be rendered as if they have an alpha channel, even though they don’t. A good example is white text on a black background. Rasterized text in most images is anti-aliased properly, and further modification to the RGB channels by the Luma Keyer can degrade the quality of the edges. Selecting the Preserve RGB checkbox adds transparency to the image without modifying the RGB channels, leaving smoothly aliased text or graphics visually intact.
Mix: A slider to set the percentage of the original image to be blended with the keyed image. 100% is the fully keyed image, while 0% is the original, unkeyed image.
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