Filion v0.1.0

Release Date: August 30, 2026

Previous public release: v0.0.5

Development range included: v0.0.6 through v0.1.0

Filion v0.1.0 introduces a comprehensive overhaul of the Home Screen browsing experience with horizontal folder navigation, real-time model counts, a recently opened models shelf, smooth screensaver turntable auto-rotation, 360-degree multi-touch gestures, startup preloading, and major performance optimizations.

Highlights

• Horizontal Folder Navigation: Browse added storage folders in a horizontal scrolling row with live model count badges, one-tap filtering, and direct folder creation.
• Recently Opened Shelf: Instantly access and reopen recently inspected 3D models from a dedicated horizontal shelf located below folders.
• Turntable Auto-Rotation Mode: Inspect models hands-free with smooth 360-degree turntable rotation, custom speed presets (Slow, Smooth, Fast), and immersive fullscreen viewing.
• Multi-Touch 360 Orbit Controls: Full 1-finger orbit, 2-finger pan translation, 2-finger pinch zoom, 2-finger roll rotation, and double-tap orientation reset.
• Startup Preload & Fast Scrollbar: Asynchronous model and folder preloading during the splash screen, combined with a spring-physics fast scrollbar with alphabet index scrubbing.
• Optimized APK Splits: Dedicated CPU architecture builds (ARM64, ARMv7, x86, x86_64) reducing download and install size by 60% down to ~12.6 MB.

What's New Since v0.0.5

Home Screen & Library Navigation

• Horizontal Folders Row: Added interactive filter chips for "All" and each configured scan folder with real-time model count badges and instant "+ Add Folder" creation.
• One-Tap Folder Filtering: Selecting a folder filters the model collection below, updating the header to Models in <Folder> with a quick "Show all" reset button and folder-specific empty states.
• Recently Opened Shelf: Added a horizontal shelf beneath folders for immediate access to recently inspected models, with persistent history saved across sessions.
• Empty State Display Fix: Fixed the Home Screen empty state by suppressing the "Models Discovered" header when no models are scanned.
• Collapsible Top App Bar: Integrated a collapsible LargeTopAppBar with search, refresh, and settings actions that smoothly transitions on list scroll.
• Pull-to-Refresh: Added swipe-to-refresh to rescan configured storage roots and refresh discovered models on demand.
• Fast Scroll Scrubbing: Integrated FilionFastScrollbar with tactile spring stretch, thumb feedback, and dynamic alphabet index tooltips for large collections.

3D Viewer & Gesture Controls

• Turntable Screensaver Mode: Added hands-free continuous turntable auto-rotation with speed presets (Slow, Smooth, Fast) and active toolbar indicators.
• Multi-Touch Orbit & Pan: Added 1-finger unconstrained pitch/yaw orbit, 2-finger pan translation, 2-finger pinch zoom, 2-finger roll rotation, and double-tap orientation reset.
• Screen Wake Lock: Integrated automatic display wake locks during 3D model inspection and turntable rotation to prevent screen timeouts.
• Cross-Screen Motion: Added smooth fade and scale transitions when entering and leaving the 3D model viewer while preserving list scroll position.

Performance, Storage & Build Engineering

• Splash Screen Preloading: Preloaded themes, scan folders, and local GLB models during the AndroidX splash screen to eliminate startup empty-state flicker.
• Folder Hierarchy Pruning: Smart folder management automatically prunes redundant child folders when parent folders are added, avoiding duplicate scans.
• Path Deduplication: Canonical document and file path deduplication ensures models never duplicate across overlapping storage roots.
• CPU Architecture Splits: Configured split APKs for ARM64-v8a, ARMeabi-v7a, x86, and x86_64 alongside a universal fallback build.
• R8 & ProGuard Optimization: Enabled release R8 minification and resource shrinking with dedicated keep rules for Google Filament native C++ bindings and SceneView.
• Updated Toolchain: Upgraded Android build toolchain to AGP 9.3.1, Kotlin 2.4.10, and Jetpack Compose BOM 2026.08.00.

Filion v0.0.5

Filion 0.0.5 - First Release

Filion is a simple GLB model viewer for Android.

• Open GLB files from Filion or another app
• Rotate, pan, and zoom models
• Adjust lighting and background colors
• Scan selected folders for models
• View file details and share models
• Choose light, dark, or system theme

Requires Android 10 or newer.