s) test_cam_infos = [] nerf_normalization = getNerfppNorm(train_cam_infos) ply_path = os.path.join(path, "points3d.ply") if not os.path.exists(ply_path): # Since this data set has no colmap data, we start with random points num_pts = 100_000 print(f"Generating random point cloud ({num_pts})...") # We create random points inside the bounds of the synthetic Blender scenes xyz = np.random.random((num_pts, 3)) * 2.6 - 1.3 shs = np.random.random((num_pts, 3)) / 255.0 pcd = BasicPointCloud(points=xyz, colors=SH2RGB(shs), normals=np.zeros((num_pts, 3))) storePly(ply_path, xyz, SH2RGB(shs) * 255) try: pcd = fetchPly(ply_path) except: pcd = None scene_info = SceneInfo(point_cloud=pcd, train_cameras=train_cam_infos, test_cameras=test_cam_infos, nerf_normalization=nerf_normalization, ply_path=ply_path) return scene_info sceneLoadTypeCallbacks = { "Colmap": readColmapSceneInfo, "Blender" : readNerfSyntheticInfo }