Character rotating into mouse direction WITHOUT using raycast?

Unity Engine
1

Hey!
Is there any way to force the character looking at mouse without raycasting?
Why is that? It’s because my camera is placed at semi-isometric position, and when i use the raycast code - my character is looking at all the walls and acts weirdly when it’s above the ground. Sometimes it glitches THAT much, that when i have my mouse below character it still look upwards.

Any idea how to solve this?

Here’s the code:

using UnityEngine;
using System.Collections;

public class MouseLooking : MonoBehaviour {
	public float Speed = 10;
	Vector3 position;
		
	void Update () {
		//if (Input.GetMouseButton (0)){
			RayTrace();
		//}
		MoveToPosition();
	}

	void RayTrace()	{
		RaycastHit hit;
		Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
		if (Physics.Raycast(ray, out hit, 1000)) {
			position = new Vector3(hit.point.x, hit.point.y, hit.point.z);
			//Debug.Log(position);
		}
	}

	void MoveToPosition(){
		if (Vector3.Distance(transform.position, position) > 5) {
			Quaternion newRotation = Quaternion.LookRotation(position - transform.position);
			
			newRotation.x = 0f;
			newRotation.z = 0f;
			
			transform.rotation = Quaternion.Slerp(transform.rotation, newRotation, Time.deltaTime * 30);
		}
	}
}

Thank you <3

2

Camera.ScreenToWorldPoint maybe? Might act the same as Raycast but maybe not… just a guess I’ve never attempted it.

3

Why are you adjusting the x and z of the quaternion?

I am sure that would give you incredibly strange results.

So I took out the offending stuff and played with it some.

	using UnityEngine;
	using System.Collections;
	 
	public class MouseLooking : MonoBehaviour {
		public float Speed = 10;
		Vector3 position;
		   
		void Update () {
			if (Input.GetMouseButtonDown (0)){
				GetPoint();
			}
			RotateToLook();
		}
	 
		void GetPoint() {
			RaycastHit hit;
			Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
			if (Physics.Raycast(ray, out hit, 1000)) {
				position = hit.point;
				//Debug.Log(position);
			}
		}
	 
		void RotateToLook(){
			if (Vector3.Distance(transform.position, position) > 5) {
				Quaternion rotation = transform.rotation;
				
				// ensure that we are looking at the same plane as the character
				//Vector3 p = position;
				//p.y = transform.position.y;
				//transform.LookAt(p);
				
				transform.LookAt(position);
				
				
				transform.rotation = Quaternion.Slerp(rotation, transform.rotation, Time.deltaTime * 30);
			}
		}
	}

and of course I know what you are trying to do, so I renamed the functions to say what they do. MoveToPosition Rotates? :wink:

4

I want to rotate it only by Y, not the X and Z :wink:

Also, this script does the same thing as mine, which is not correct. I’ll post screens what i mean:

http://i.imgur.com/AutshHc.png
http://i.imgur.com/1Zym0WH.png

This is what i mean. I want the cube to only look at ground direction, like… forcing my mouse to no-clip through the wall, and then make the raycast.
I cannot get past this :c

And the “MoveToPosition” was because it was firstly moving like in diablo, but then i decided to make WSAD movement :wink:

5

I think what he meant with the X, Y, Z is that you generally don’t wanna mess with individual components of a quaternion as it has to be normalized and everything, can lead to some strange stuff.

In regards to what the problem you showed in the pictures, i think you can make a layermask and apply it to the raycast, then make sure only the ground has a specific “ground” layer or something on it, raycast should only hit the ground or whatever other objects you put the layer on.