How to rotate matcap with shaderMaterial

Hi. I’ve been very inspired by this website.

especially, this effect

Not transition between matcap, but the rotate(I think the matcap are rotating) of matcap.

So, I tried with my shader material to follow this.

I rotate the texture with change texture and uv. I tried two ways but it failed. there is no effect with rotation matcap.

Can I know how can I rotate matcap with shader code?

Or is it possible to change rotation of matcap?