Update README.md

README.md

@@ -94,9 +94,10 @@ mask = np.load(f"{local_dir}/obj_png_128_72_6000/anise/anise_001/Scan/000_mask.n
 ## Source Data and Rendering
 
 All raw scans are taken from the official [OmniObject3D](https://omniobject3d.github.io/)
-website. We include all raw scans provided on the official website, where the number of categories and objects may slightly differ from those reported in the original OmniObject3D paper. The rendering
-pipeline is adapted from the implementation released with
-[Objaverse](https://objaverse.allenai.org/) (Deitke et al., 2023).
+website. We include all raw scans provided on the official website; consequently, the
+number of categories and objects may differ slightly from those reported in the original
+OmniObject3D paper. The rendering pipeline is adapted from the implementation released
+with [Objaverse](https://objaverse.allenai.org/) (Deitke et al., 2023).
 
 ## Code & Reproducibility
 
@@ -105,6 +106,42 @@ The rendering pipeline used to generate this dataset is included in this reposit
 It is adapted from the [Objaverse](https://objaverse.allenai.org/) rendering script
 (Deitke et al., 2023), with the upstream license header and attribution retained.
 
+### Setup
+
+Download Blender 3.2.2:
+
+```bash
+wget https://download.blender.org/release/Blender3.2/blender-3.2.2-linux-x64.tar.xz && \
+  tar -xf blender-3.2.2-linux-x64.tar.xz && \
+  rm blender-3.2.2-linux-x64.tar.xz
+```
+
+On a headless Linux server, install and start Xorg:
+
+```bash
+sudo apt-get install xserver-xorg -y && \
+  sudo python3 start_x_server.py start
+```
+
+Install the Python dependencies (Python > 3.8 is required). These are the same
+dependencies as the
+[objaverse-xl rendering scripts](https://github.com/allenai/objaverse-xl/tree/main/scripts/rendering).
+
+### Reproduce the Dataset
+
+1. Download and unzip the OmniObject3D raw scans.
+2. Run the rendering script:
+
+```bash
+blender-3.2.2-linux-x64/blender --background --python rendering/blender_script.py -- \
+  --object_path <path/to/unzipped/OmniObject3D> \
+  --output_dir <path/to/output> \
+  --num_renders 72 \
+  --engine CYCLES \
+  --save_image True \
+  --save_mask True
+```
+
 ## License
 
 This dataset is derived from [OmniObject3D](https://omniobject3d.github.io/). Its use is