Differences between Open Brush and Tilt Brush

Features Added to Open Brush

This section only lists features currently in the main release. There is also a beta version with new features. There's also plenty more stuff in experimental and alternate builds.

Scripting & Extensibility

• Plugin Scripting - Create custom tools and modify painting behavior with Lua scripts
• Scripting API - WebSocket and HTTP API support

Import & Export

• VOX File Import - Import Magicavoxel .vox format files
• Open Blocks Model Import - Import models from the sibling app Open Blocks
• New GLTF Importer - Based on GLTFast with support for animated 3D models
• SVG Import - Import SVG files as images or 3D meshes
• Point Cloud Import
• 360 Panorama Backgrounds - Import jpeg, png, and HDR panoramas (including stereoscopic)
• WebM Video Import
• LATK export
• Folder Navigation UI - Better organization of imported media
• Splitting 3D Models - Break apart imported models into separate components

Painting & Drawing Tools

• Lazy Input
• Jitter
• Repaint Tool - Change brush type, color, or size of existing strokes
• Repaint Selection - Apply repaint tools to all selected strokes
• Multi-Mirror - Dozens of symmetry types with color variance control
• Bimanual Input
• The Revolver
• Passthrough Hull Brush - Paint with passthrough effects
• Experimental Brushes
• Logitech MX Ink Integration - Support for Logitech MX Ink stylus

Guides & Snapping

• Grid and Angle Snapping
• Enhanced Snap Settings - Snap axis toggles, snap to guides, snap selected objects
• Guide Settings & Snapping to Guides
• Plane Guide
• View Axis Unlocking

Selection & Transformation

• Transform Panel - Axis locks, alignment tools, and precise positioning
• Selection/Erase Filter
• Full Selection Tools on Quest/Standalone VR - "Select All" and "Invert Selection" now available
• Erase Media Widgets - Use the erase tool on images, videos, and 3D models
• Snip/Join Strokes

Organization & File Management

• Layers
• Saved Stroke Gallery - Save and reuse selections of brush strokes
• Merging Sketches
• Hiding Brushes with Brush Tags
• Move selection to current layer

Video & Camera

• Advanced Camera Tool
• Camera Paths on All Headsets - Create and edit camera paths on standalone devices
• Camera Path Rendering on All Devices - Render video frames on standalone headsets
• Render Video on Any Computer - Use ffmpeg on Mac and PC to render videos
• Webcam Viewer - View webcam feed while working (PC VR only)

Sharing & Publishing

• Publish to Viverse - Share sketches directly to Viverse 3D worlds
• Icosa Gallery uploads
• Icosa Gallery Integration - Browse and load sample sketches directly from Icosa Gallery

User Interface

• XR Keyboard - Built-in virtual keyboard for naming sketches and layers
• Multiple Language Support - French, Spanish, German, Chinese, Japanese, Korean
• Switching hands
• Reset to "First Time"

Platform & Device Support

• Support for More Headsets - Pico, Zapbox, and other OpenXR devices
• Quest 1 Support - Full selection tool support restored
• Audio Reactive Mode for Quest - Brushes animate to imported audio
• Monoscopic Mode - Run on non-VR devices
• Flatscreen View Mode - Navigate sketches with keyboard, touch, or gamepad
• Enhanced View-only Mode - Improved navigation on non-VR devices with gamepad and touch support
• Passthrough Mode with Room Scale - Stable scene orientation relative to real space

Multiplayer & Collaboration

• Multiplayer Support - Collaborative sketching with multiple users

Other Features & Improvements

• LIV Support
• Oculus MRC fixes
• Fly Tool
• JSON exports include sketch metadata
• Precise slider control using thumb stick

Bear in mind this gives a misleading impression of the amount of work that has been put in. There's been a ton of effort on things that don't result in user-visible features but will help ease future development. Special props to @mikeage for the amazing automated build system.