Render points as normal facing disks

[seals77]

Hello, is it possible to render point cloud as disks oriented by normal attribute? Right now they seem to be always facing the camera, which results in incorrect speculars.

I tried to instance a circle on my point cloud, which produces expected results, but is impractically slow. I have around 80 milion of points.

[seals77]

This feature would be equal to Use N For Point Rendering, which is present in Mantra.

From docs:

Mantra will initialize the N global from the N attribute when rendering point primitives. When disabled (the default), point normals will be initialized to face the camera.

[seals77 · Accepted solution]

So I finally figured it out.
The solution is quite simple: I can get normal attribute into shader with User Data RGB node and pipe it into Normal input in Standard Surface in Gometry group.

One catch is that I couldn't use N as an attribute name even though it existed on geometry, but I had to duplicate N into normal attribute and use that instead. Probably a bug? But easy to workaround.