How can I render a normal map using 2D Gaussian Splatting?

[jonggul2]

Hello, I'm currently working on rendering with 2D Gaussian Splatting.

I would like to render the surface normal for each pixel to generate a normal map, similar to the attached image.

Could anyone please share any ideas, relevant resources, or code examples on how to achieve this?

Thank you.

[hbb1]

Just uncomment these lines of code related to the normal rendering in mesh_utils.py

2d-gaussian-splatting/utils/mesh_utils.py

Line 294 in 1920a23

# save_img_u8(self.normals[idx].permute(1,2,0).cpu().numpy() * 0.5 + 0.5, os.path.join(vis_path, 'normal_{0:05d}'.format(idx) + ".png"))