Convert shader code to shader graph for curved world

Hello everybody,

I'm trying to make a curved world with shader graph and I found on internet a shader script which works very well with my objects. But I'm a newbie in shader and shader graph helps me to have a good graphic feelings.



Thus, I would like to know how can I convert this simple shader code in shader graph :

void vert(inout appdata_full v) {
v.vertex = mul(unity_ObjectToWorld, v.vertex);
float dist = distance(_WorldSpaceCameraPos, v.vertex);
v.vertex.y -= pow(dist, _Curvature) * _Trimming / 100;
v.vertex = mul(unity_WorldToObject, v.vertex);
}

with _Curvature and _Trimming are two properties.

I tried to convert this code into nodes but I totally failed.

Someone can help me ??

Thank you.

Best regards,

ShottaPanda