uint3 v = (uint3) (int3) round(p);
    v.x ^= 1103515245U;
    v.y ^= v.x + v.z;
    v.y = v.y * 134775813;
    v.z += v.x ^ v.y;
    v.y += v.x ^ v.z;
    v.x += v.y * v.z;
    v.x = v.x * 0x27d4eb2du;
    v.z ^= v.x << 3;
    v.y += v.z << 3; 
Out = v * (1.0 / float(0xffffffff));