Rotate object with touch

@sanja15513 Here's a quick script I use on update on a GameObject to rotate it along the x axis. It could be modified to rotate along multiple axises by adding the deltaPosition.y

         if(Input.touchCount == 1)
         {
             float rotateSpeed = 0.09f;
             Touch touchZero = Input.GetTouch(0);
 
             //Rotate the model based on offset
             Vector3 localAngle = activeARfurniture.transform.localEulerAngles;
             localAngle.y -= rotateSpeed * touchZero.deltaPosition.x;
             activeARfurniture.transform.localEulerAngles = localAngle;
         }

 using System;
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 public class Functionalities : MonoBehaviour
 {
 
     public GameObject m_objecttorotate;
 
     [Space]
     public int m_minScale;
     public int m_maxScale;
 
     private float initialFingersDistance;
 
     private Vector3 initialScale;
     private float m_firstpoint;
     private float m_secondpoint;
 
     private int m_inc = 0;
 
     void Update()
     {
 
         if (Input.touchCount == 0)
         {
             m_inc = 0;
             return;
         }
 
 
         if (m_objecttorotate==null)
         {
             return;
         }
 
 
         if (Input.touchCount == 1)
         {  
             if (m_inc==0)
             {
                 m_firstpoint = (int)Input.GetTouch(0).position.x;
                 m_secondpoint = (int)Input.GetTouch(0).position.x;
             }
 
             m_inc++;
 
             if (m_inc<=10)
             {
                 return;
             }
 
             m_secondpoint = (int)Input.GetTouch(0).position.x;
 
             if (m_firstpoint<m_secondpoint)
             {
                 _Rotating(false);
             }
             else if (m_firstpoint > m_secondpoint)
             {
                 _Rotating(true);
             }
 
 
             return;
         }
 
         if (Input.touches.Length == 2)
         {
             _Scaling();
             return;
         }
     }
 
 
     private void LateUpdate()
     {
         if (m_inc>=10)
         {
             m_firstpoint = (int)Input.GetTouch(0).position.x;
         }
     }
 
     void _Rotating(bool m_right)
     {
 
         //Debug.Log(m_right);
 
         if (m_right)
         {
             m_objecttorotate.transform.Rotate(Vector3.up * Time.deltaTime *200f);
         }
         else
         {
             m_objecttorotate.transform.Rotate(Vector3.down * Time.deltaTime *200f);
         }
     }
 
 
     void _Scaling()
     {
         if (Input.touches.Length == 2)
         {
             Touch t1 = Input.touches[0];
             Touch t2 = Input.touches[1];
 
             if (t1.phase == TouchPhase.Began || t2.phase == TouchPhase.Began)
             {
                 initialFingersDistance = Vector2.Distance(t1.position, t2.position);
                 initialScale = m_objecttorotate.transform.localScale;
             }
             else if (t1.phase == TouchPhase.Moved || t2.phase == TouchPhase.Moved)
             {
 
                 float currentFingersDistance = Vector2.Distance(t1.position, t2.position);
                 var scaleFactor = currentFingersDistance / initialFingersDistance;
 
                 Vector3 m_scale= initialScale * scaleFactor;
 
                 m_scale.x = Mathf.Clamp(m_scale.x, m_minScale,m_maxScale);
                 m_scale.y = Mathf.Clamp(m_scale.y, m_minScale, m_maxScale);
                 m_scale.z = Mathf.Clamp(m_scale.z, m_minScale, m_maxScale);
                 m_objecttorotate.transform.localScale = m_scale;
                 m_detailstext.text = m_scale.ToString();
             }
         }
 
     }
 }

this is what i made for rotation and scaling object with pintch.

Thanks for the script @EgoAnt It works perfect except the rotation is not complete 360 degree around x and y axis which is what i was looking for. Please tell me how to do complete 360 degree rotation. It will be really helpful.

You could use two quaternion rotations (for x and y axis) and multiply them together to get a smooth transition. The following script was made in WPF but can be modified for touch input on an object in Unity.

         Vector2 InitialMouseTouch = new Vector2();
 
         Quaternion PreviousQuatX = new Quaternion();
         Quaternion PreviousQuatY = new Quaternion();
         Quaternion QuatX = new Quaternion();
         Quaternion QuatY = new Quaternion();
 
         void Update()
         {
             float ScreenWidth = 1920;
             float ScreenHeight = 1080;
 
             Vector2 CurrentMouseTouch = Input.MousePosition; // PSEUDOCODE
 
             if (Input.MouseButtonDown(0))
             {
                 InitialMouseTouch = Input.MousePosition;
                 PreviousQuatX = QuatX;
                 PreviousQuatY = QuatY;
             }
 
             double RotY = (CurrentMouseTouch.X - InitialMouseTouch.X) / ScreenWidth * LookSensitivity;
             double RotX = (CurrentMouseTouch.Y - InitialMouseTouch.Y) / ScreenHeight * LookSensitivity;
 
             QuatX = Quaternion.Multiply(new Quaternion(new Vector3D(1, 0, 0), -RotX), PreviousQuatX);
             QuatY = Quaternion.Multiply(new Quaternion(new Vector3D(0, 1, 0), -RotY), PreviousQuatY);
             Quaternion QuaternionRotation = Quaternion.Multiply(QuatY, QuatX); 
             // Composite Quaternion between the x rotation and the y rotation
 
             // Apply the QuaternionRotation quaternion onto an object to rotate it.
         }

How is it possible to rotate object along its all axis on finger swipe / drag gesture regarding the camera pan / rotation?

Thanks