add dataset download script

download_datasets.py

@@ -0,0 +1,26 @@
+import gdown
+import zipfile
+import subprocess
+import urllib.request
+
+# nerf
+print('Downloading blender dataset')
+gdown.download("https://drive.google.com/uc?id=18JxhpWD-4ZmuFKLzKlAw-w5PpzZxXOcG", './data/nerf_synthetic.zip')
+
+print('Extracting ...')
+with zipfile.ZipFile('./data/nerf_synthetic.zip', 'r') as f:
+    f.extractall('./data/')
+
+print('Generating multiscale nerf dataset')
+subprocess.run(['python', 'convert_blender_data.py', '--blenderdir', './data/nerf_synthetic'])
+
+print('Downloading SDF datasets')
+gdown.download("https://drive.google.com/uc?id=1xBo6OCGmyWi0qD74EZW4lc45Gs4HXjWw", './data/gt_armadillo.xyz')
+gdown.download("https://drive.google.com/uc?id=1Pm3WHUvJiMJEKUnnhMjB6mUAnR9qhnxm", './data/gt_dragon.xyz')
+gdown.download("https://drive.google.com/uc?id=1wE24AZtXS8jbIIc-amYeEUtlxN8dFYCo", './data/gt_lucy.xyz')
+gdown.download("https://drive.google.com/uc?id=1OVw0JNA-NZtDXVmkf57erqwqDjqmF5Mc", './data/gt_thai.xyz')
+
+print('Downloading image dataset')
+urllib.request.urlretrieve('http://www.cs.albany.edu/~xypan/research/img/Kodak/kodim19.png', './data/lighthouse.png')
+
+print('Done!')