[2D] Sprite flickers/is choppy when moving

Question

The movement of my player sprite is very choppy, almost as if it "flickers." The sprite is 16x24 and I have tried just about everything I can to fix this issue, I have searched everywhere.

The camera is orthographic, size 100,
The player sprite is 16x24, PPU 1, point filter, 16-bits format
The player gameObject is scale 1,1,1
Rigidbody 2d, interpolate none, is NOT kinematic
Quality settings: anisotropic textures disabled, anti aliasing disabled, v sync count every v blank

Here's the movement code that is applied to the player (commented out parts of other solutions I tried for the movement)

         if(Input.GetKey(KeyCode.A))
         {
             //Vector2 newPos = new Vector2(this.transform.position.x - 4f, this.transform.position.y);
             //this.gameObject.transform.position = Vector3.Lerp(transform.position, newPos, playerSpeed * Time.smoothDeltaTime);
             //this.gameObject.transform.position = Vector2.MoveTowards(this.gameObject.transform.position, newPos, playerSpeed * Time.deltaTime);
 
             this.gameObject.GetComponent<Rigidbody2D>().AddForce(-Vector2.right * playerSpeed * Time.smoothDeltaTime);
             this.gameObject.transform.eulerAngles = new Vector2(0, 180);
             
             isFacingRight = false;
             isFacingLeft = true;
             
             isMoving = true;
         }
         
         if(Input.GetKey(KeyCode.D))
         {
             //Vector2 newPos = new Vector2(this.transform.position.x + 4f, this.transform.position.y);
             //this.gameObject.transform.position = Vector3.Lerp(transform.position, newPos, playerSpeed * Time.smoothDeltaTime);
             //this.gameObject.transform.position = Vector2.MoveTowards(this.gameObject.transform.position, newPos, playerSpeed * Time.deltaTime);
 
             this.gameObject.GetComponent<Rigidbody2D>().AddForce(Vector2.right * playerSpeed * Time.smoothDeltaTime);
             this.gameObject.transform.eulerAngles = new Vector2(0, 0);
             
             isFacingRight = true;
             isFacingLeft = false;
             
             isMoving = true;
         }

If anyone has any suggestions AT ALL, please share. I have spent days trying to resolve this issue.

Thank you.

Answer 1

Answer by GiyomuGames · Oct 19, 2015 at 06:22 AM

Hi YeeLuke,

Just checking but please confirm that the code above is in FixedUpdate() and that your code updating the camera position is in LateUpdate().

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YeeLuke · Oct 19, 2015 at 06:42 AM 0

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Yes the above code is in FixedUpdate, the camera does not move in the scene.

Thanks for the reply.

GiyomuGames YeeLuke · Oct 19, 2015 at 06:59 AM 0

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I see. I don't think it will make a huge different but did you try using Time.fixedDeltaTime ins$$anonymous$$d of Time.smoothDeltaTime? I'll try to check in my 2D game if the RigidBody2d interpolate is set to None or not.

YeeLuke GiyomuGames · Oct 19, 2015 at 07:09 AM 0

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Time.fixedDeltaTime seems to give the same results of Time.smoothDeltaTime...the sprite still has a flicker-y/choppy movement.

Perhaps is there a way to make the sprite move pixel-by-pixel ins$$anonymous$$d of Unity's "unit" measurement?

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YeeLuke · Oct 19, 2015 at 04:27 PM 0

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I did not change the localscale of the gameObject.
playerSpeed is a float
The code for the player rotation is: this.gameObject.transform.eulerAngles = new Vector2(0, 180);

I tried changing the PPU and the same issues occurs.

Thanks again, for all the suggestions. I appreciate it a lot.

[2D] Sprite flickers/is choppy when moving

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