Strange warping effect with Cinemachine Target Follow

Hi there,

I've been struggling with an issue for quite some time now and have all but run out of ideas.
I'm using a Cinemachine Virtual Camera in a 2D project to follow around a target. The ground / background is a Unity Tilemap GameObject.
As you can see in this gif, when following around the player (a 24x24 sprite), the background tiles seem to warp a bit. I've tried to script all types of solutions to adjust the Virtual Camera transform position and hopefully snap/move it "correctly" to no avail. I don't even know for sure that the source of the issue is with the camera setup. I'm running out of potential solutions to something that seems like a pretty straightforward and very common scenario. I've created a sample project illustrating the issue which can be downloaded here.

Using Unity 2017.4.0f1 Personal.
The background sprites are 32x32, with a PPU of 32. No compression, Point (no filter), rendered using a material with Shader: Sprites/Default, and Pixel snap.

Cinemachine Virtual Cam is set to Ortho lens size 16, Body: Framing Transposer with default settings.

Thank you so much for any suggestions or tips!!!
It would be amazing to hear from @Adam_Myhill or @Gregoryl

It feels similar to what's being described here with sub-pixel movement but I don't know for sure. The solution in that blog post feels like it should be unnecessary at this point (but again - maybe not).

I've created camera scripts and attached them to the virtual camera as follows:

UPDATE: This appears to be a camera size issue, as per this helpful post. Keeping this post up in case it helps others in the future.

Code (CSharp):

1.  
2. float maxPixelHeight = 32;
3. CinemachineVirtualCamera vcam;
4.  
5. public void Awake()
6.     {
7.         float scale = Screen.height / maxPixelHeight;
8.         float orthographicSize = (Screen.height / scale) / 2f;
9.         vcam = GetComponent<CinemachineVirtualCamera>();
10.         vcam.m_Lens.OrthographicSize = orthographicSize;
11. }
12.  
13.     public void Update()
14.     {
15.         Vector3 tempPos = vcam.transform.position;
16.       Vector3 newPos = new Vector3(Mathf.RoundToInt(tempPos.x), Mathf.RoundToInt(tempPos.y), Mathf.RoundToInt(tempPos.z));
17.         vcam.transform.position = tempPos;
18.     }

I've also tried:

Code (CSharp):

1.     public void Update()
2.     {
3.         Vector3 tempPos = vcam.transform.position;
4. Vector3 newPos = new Vector3((float)System.Math.Round((decimal)tempPos.x, 2) , (float)System.Math.Round((decimal)tempPos.y, 2), (float)System.Math.Round((decimal)tempPos.z, 2));
5.         vcam.transform.position = newPos;
6.     }
7.  

and something like:

Code (CSharp):

1.     public void Update()
2.     {
3.         Vector3 tempPos = vcam.transform.position;
4.         vcam.transform.position = new Vector3(RoundToNearestPixel(tempPos.x), RoundToNearestPixel(tempPos.y), RoundToNearestPixel(tempPos.z));
5.     }
6.  
7.     public float RoundToNearestPixel(float unityUnits)
8.     {
9.         float valueInPixels = unityUnits * maxPixelHeight;
10.         valueInPixels = Mathf.Round(valueInPixels);
11.         float roundedUnityUnits = valueInPixels * (1 / maxPixelHeight);
12.         return roundedUnityUnits;
13.     }

 

Thank you @Gregoryl! Yep, all is well with the shimmer effect. I'm seeing a different issue though with 2D camera jitters as detailed here. I spent a lot of time going through a lot of threads where others have seen similar issues, and produced a super stripped-down project demonstrating the issue. I'm sure it's something very simple that I'm overlooking. It would be of tremendous help if you had a few moments to take a look. Thank you!