一、ImgRef
Core Features: Split-screen reference tool compatible with major drawing apps like Procreate and ArtStudio. Supports image/GIF frame reference, video frame extraction, handwritten annotations, color picker, mirror/desaturation, and HD collage export.
Highlights: Built-in text tools (multiple font styles), video controls (playback adjustment/mute), auto-alignment, and magnetic snapping for dynamic reference needs.
Use Cases: Comic storyboarding, color studies, and scenarios requiring flexible reference material organization.
二、PureRef
Cross-platform Support: Available on Windows/macOS, manages references via collage canvas with efficient shortcuts (e.g., Alt+drag to pan, Shift for multi-select).
三、Huashijie Pro Reference Feature
Integrated in Drawing App: Add reference images (up to 5) directly in the canvas sidebar, supports real-time desaturation/flipping and color picking, ideal for practice.
四、Artstudio Pro (iPad)
Reference Feature: Floating reference window with free scaling/rotation/flipping, color picking, and drag-and-drop import. Photoshop-like interface suits multi-layer workflows.