3D FORMAT CONVERTER · APPLE PLATFORMS
GANTRY
Convert to USDZ for Apple platforms.
Convert USD, USDA, USDC, USDZ, FBX, GLTF, GLB, OBJ, and STL assets to USDZ with full PBR material integrity. The production-ready replacement for Reality Converter.
Reality Converter went unmaintained in 2024.
Apple platforms still need a converter.
Gantry is the replacement.
REALITYKIT
VIEWPORT
Preview your scenes in real time with a RealityKit-powered viewport. Orbit, pan, and inspect your model exactly as it will appear on Apple platforms, with accurate lighting and material rendering.
ENVIRONMENT
LIGHTING
Evaluate your materials under real-world conditions using a curated collection of IBL environments: Neutral, Beach Sunset, Downtown Night, Neighborhood Overcast, Rooftop Sunny, and more. Adjust exposure and rotation, toggle soft reflections, or use the environment as the scene background.
MATERIAL
EDITOR
Tweak materials per scene with full control over the conversion output. When editing, choose to keep your materials as-is or convert to USD Preview Surface or MaterialX. The conversion applies as you edit, so what you see is what gets exported. Review and adjust Base Color, Metallic, Roughness, Emissive, and Opacity, and replace or clear individual textures per channel.
TEXTURE
OPTIMIZATION
Optimize textures per channel to reduce your final USDZ file size. Choose from JPEG, PNG, or AVIF output, set quality (Fast, Balanced, or Best) and maximum resolution, and generate mipmaps for smoother RealityKit loading.
MATERIAL EDITOR 
VARIANTS 
ANIMATION Meet the family.
The Reality Check family of tools, built to ship to Apple platforms.
AUTHORING · CONVERT
Convert, inspect, and prepare 3D scenes for Apple platforms. Drag in a stage. Ship the result.
- USD, USDA, USDC, USDZ, FBX, GLTF, GLB, OBJ, STL → USDZ
- RealityKit live preview
- Full material editing
- Multi-format export
- macOS + iOS/iPadOS
QUALITY GATE · VALIDATE
Professional OpenUSD validation. The agent scans your stage, diagnoses issues, and proposes fixes. You decide.
- Full validation — free
- 900+ RealityKit-specific rules
- Agentic fix execution
- Workflow automation
- BYOK assistant
Mac. iPhone.
iPad.
Gantry runs natively on macOS, iOS, and iPadOS. Import from Files, your browser, email, or direct share. Preview in RealityKit on device. Export to USDZ. Open in AR Quick Look in one tap.
