apple · durul · Dec 20, 2025 · Dec 20, 2025
diff --git a/README.md b/README.md
@@ -50,7 +50,7 @@ wget https://ml-site.cdn-apple.com/models/sharp/sharp_2572gikvuh.pt
 To use a manually downloaded checkpoint, specify it with the `-c` flag:
 
 ```
-sharp predict -i /path/to/input/images -o /path/to/output/gaussians -c sharp_2572gikvuh.pt
+sharp predict -i input -o output/gaussians -c sharp_2572gikvuh.pt
 ```
 
 The results will be 3D gaussian splats (3DGS) in the output folder. The 3DGS `.ply` files are compatible to various public 3DGS renderers. We follow the OpenCV coordinate convention (x right, y down, z forward). The 3DGS scene center is roughly at (0, 0, +z). When dealing with 3rdparty renderers, please scale and rotate to re-center the scene accordingly.
@@ -89,6 +89,31 @@ If you find our work useful, please cite the following paper:
 
 Our codebase is built using multiple opensource contributions, please see [ACKNOWLEDGEMENTS](ACKNOWLEDGEMENTS) for more details.
 
+## Spatial Computing & Vision Pro Integration
+
+SHARP's single-image 3D Gaussian output can be integrated into Apple Vision Pro workflows using complementary tools from our [Spatial Computing & 3D Resources](Spatial%20Computing%20%26%203D%20Resources.md) list.
+
+### Asset Pipeline
+
+```
+[Photo] → SHARP → [3DGS .ply] → Convert3D → [USDZ/GLB] → Vision Pro / Safari
+```
+
+### Recommended Tools
+
+| Category          | Tool                                            | Usage                                         |
+| ----------------- | ----------------------------------------------- | --------------------------------------------- |
+| **WebXR Viewer**  | [Google Model Viewer](https://modelviewer.dev/) | Display converted assets in Safari (visionOS) |
+| **Converter**     | [Convert3D](https://convert3d.org/convert/glb)  | `.ply` → `.glb` → `.usdz` conversion          |
+| **AI Generation** | [Zoo Text-to-CAD](https://zoo.dev/text-to-cad)  | Complement SHARP with procedural models       |
+| **Reference**     | [Dimensions.com](https://www.dimensions.com/)   | Real-world dimensions for proper scaling      |
+
+### Notes
+
+- **Video Rendering**: Currently requires CUDA GPU (MPS not supported for `--render`)
+- **Format Conversion**: SHARP outputs `.ply` files; conversion to USDZ is needed for Vision Pro
+- **Coordinate System**: OpenCV convention (x right, y down, z forward) - adjust for third-party renderers
+
 ## License
 
 Please check out the repository [LICENSE](LICENSE) before using the provided code and

diff --git a/Spatial Computing & 3D Resources.md b/Spatial Computing & 3D Resources.md
@@ -0,0 +1,50 @@
+# Spatial Computing & 3D Resources (Vision Pro Ready)
+
+A curated list of tools, libraries, and platforms for creating 3D assets, implementing WebXR experiences, and automating CAD workflows for Apple Vision Pro and Spatial Computing.
+
+## 🥽 WebXR & Spatial Viewers
+Tools for rendering 3D models directly in the browser (Safari on visionOS) or creating immersive web experiences.
+
+* **Google Model Viewer** - [Documentation](https://modelviewer.dev/) | [Editor](https://modelviewer.dev/editor/) (Essential for AR Quick Look & USDZ/GLB web display)
+* **Vectary** - [3D Design Tool for Web](https://www.vectary.com/3d-design-tool/) (Great for prototyping spatial UIs)
+* **Threekit** - [Visual Configuration Platform](https://www.threekit.com/) (High-fidelity web rendering)
+* **VisionThree** - [Immersive Solutions](https://visionthree.io/)
+* **CAD Exchanger** - [Web Viewer](https://viewer.cadexchanger.com/) (View complex CAD files in browser)
+
+## 🤖 AI-Driven 3D Generation (Rapid Prototyping)
+Generate assets for your spatial environments using AI prompts.
+
+* **Zoo (formerly KittyCAD)** - [Text-to-CAD API](https://zoo.dev/text-to-cad) | [Playground](https://text-to-cad.zoo.dev/) (Generate parametric models via code/API)
+* **Vibe3D** - [AI 3D Generation](https://vibe3d.ai/)
+* **Meta Segment Anything** - [Demo Gallery](https://aidemos.meta.com/segment-anything/gallery/) (Texture/Asset segmentation)
+* **OneClick3D** - [Main Site](https://www.oneclick3d.io/)
+* **3D Agent** - [Main Site](https://3d-agent.com/)
+
+## 🛠️ Programmatic CAD (Code-to-Geometry)
+Create precise, parametric geometry for visionOS apps using code scripts.
+
+* **OpenSCAD** - [Main Site](https://openscad.org/index.html) | [Studio (Web)](https://zacharyfmarion.github.io/openscad-studio/)
+* **CadQuery** - [GitHub Repo](https://github.com/CadQuery/cadquery) (Python-based, powerful for generating industrial assets)
+* **Replicad** - [Docs & Examples](https://replicad.xyz/docs/examples/simple-vase) (JavaScript-based)
+* **Jerm CAD** - [GitHub Repo](https://github.com/jeremyaboyd/jerm-cad)
+* **ImplicitCAD** - [Main Site](https://www.implicitcad.org/)
+
+## 📐 Base Modeling & CAD Tools
+Foundational tools for creating high-quality 3D assets.
+
+* **FreeCAD** - [Main Site](https://www.freecad.org/?lang=de) | [Tutorials](https://alsado.de/freecad-tutorials)
+* **SolidWorks** - [Product Page](https://www.solidworks.com/product/solidworks-3d-cad)
+* **SolveSpace** - [Parametric 2D/3D CAD](https://solvespace.com/index.pl)
+* **QCAD** - [2D CAD](https://www.qcad.org/en/)
+
+## 📂 Converters & Utilities (USDZ/GLB)
+Essential utilities for converting assets to Apple's preferred formats.
+
+* **Convert3D** - [GLB Converter](https://convert3d.org/convert/glb)
+* **GLB to PNG** - [Converter](https://www.glb2png.com/#demo)
+* **Dimensions.com** - [Reference Database](https://www.dimensions.com/) (Real-world object dimensions for scaling)
+
+## 📦 Open Source Repos
+* **Nova** - [GitHub](https://github.com/agg111/nova/tree/main)
+* **Chili3D** - [GitHub](https://github.com/xiangechen/chili3d)
+* **PyOpticL** - [GitHub](https://github.com/UMassIonTrappers/PyOpticL)
diff --git a/src/sharp/utils/gaussians.py b/src/sharp/utils/gaussians.py
@@ -348,6 +348,14 @@ def save_ply(
     gaussians: Gaussians3D, f_px: float, image_shape: tuple[int, int], path: Path
 ) -> PlyData:
     """Save a predicted Gaussian3D to a ply file."""
+    #Rotate model 180 degrees
+    LOGGER.info("Applying automatic 180-degree rotation fix to bring model to front.")
+    transform_fix = torch.tensor([
+        [-1.0, 0.0,  0.0, 0.0],
+        [ 0.0, 1.0,  0.0, 0.0],
+        [ 0.0, 0.0, -1.0, 0.0]
+    ], device=gaussians.mean_vectors.device)
+    gaussians = apply_transform(gaussians, transform_fix)
 
     def _inverse_sigmoid(tensor: torch.Tensor) -> torch.Tensor:
         return torch.log(tensor / (1.0 - tensor))