pivot rotation thing

            v2f vert (appdata v)
            {
                v2f o;

                o.normal = UnityObjectToWorldNormal(v.normal);

                o.uv2 = v.uv2;
                o.uv0 = v.uv0;
                o.pivot = float3(-v.uv0.x, v.uv1.y, -v.uv0.y);
                o.oPos = v.pos.xyz;

                float3 linePoint = o.pivot - _Point;
                float3 dirPoint = normalize(linePoint);
                float3 angle = normalize(cross(dirPoint, float3(0,1,0)));

                v.pos.xyz = mul(AngleAxis3x3(_Rot * 3.141592, angle), v.pos - o.pivot);
                v.pos.xyz += o.pivot;

                float influence = 1 - saturate(sdBox(linePoint, 1) * 0.5);
                influence = 1 - saturate(sdTorus(linePoint, float2(3, 1)) * 0.5);
                v.pos.y -= influence * _Intensity;
                v.pos.xyz = lerp(o.oPos.xyz, v.pos.xyz, influence);

                o.pos = UnityObjectToClipPos(v.pos);
                return o;
            }