Given that a single hour of senior motion designer time costs roughly $100, this plugin pays for itself the first time you use it instead of manually rotoscoping hair.
Tell the AI which background elements or overlapping objects to exclude. 2. High-Performance AI Engine
By drawing a rough box around an object, the software identifies the intended subject and generates a precise mask.
: Windows 10/11 or macOS (Intel/Apple Silicon natively supported). AEScripts Mask Prompter v1.0.0 for After Effect...
For decades, the term "rotoscoping" in Adobe After Effects has been synonymous with one thing: . The pain of zooming in 400%, the pain of advancing frame-by-frame along a dancer’s hair, and the pain of watching your render queue stall because you’re using "Refine Hard Edge" on a four-minute clip.
Define subjects by placing positive points (to include areas) or negative points (to exclude areas). Alternatively, draw a bounding box around the object to instantly create a matte.
: Isolate specific parts of a frame (like a person's clothing) to apply localized color grades. Given that a single hour of senior motion
For artists testing the initial release, the results were immediately apparent, especially in the speed of generating a basic matte. Early reviews highlighted the plugin's proficiency in handling "hard" subjects, such as a moving pet with fine fur against a visually complex background. With just a few clicks and prompts, the AI could deliver a matte that captured subtle details like fur and maintained a stable mask even when the camera moved.
: The v1.0.x series generally requires After Effects 2022 or higher and is compatible with both Windows and macOS.
: Placed on background elements or adjacent objects to tell the AI what to actively exclude from the final matte. 2. Bounding Box Selections Mask Prompter: The New ROTOBRUSH Killer! High-Performance AI Engine By drawing a rough box
Adjusting mask path keyframes if the subject moves significantly to ensure the AI "stay on top" of the target.
If the initial AI selection misses a spot, use negative markers to subtract unwanted areas. Use positive markers to add missing details. 4. Adjust the matte refinement
Upon applying the effect, v1.0.0 typically attempts an automatic "Instance Detection" pass, identifying distinct objects in the frame. The user can then click on the desired object to generate a base mask.
Master rotoscoping with Mask Prompter for After Effects that completely changes how VFX artists isolate objects. By using simple points, rectangles, or text prompts, this tool eliminates the tedious process of manual frame-by-frame masking. Whether you are a seasoned compositing artist or a motion designer, Mask Prompter introduces a fast, intuitive workflow powered by cutting-edge machine learning. What is Mask Prompter?