World To Panel - UI Elements Shakes On Camera Movement

Unity Engine
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1

Hello,

for our game we use name badge UI elements. However, the UI elements jerk a lot when you move the camera (like in the video).The UI Elements have the hint ‘Dynamic Transform’ and their container ‘Group Transform’.

What could be the reason for this? Does anyone have a tip on how to fix this?

7922827--1011241--ui_jerks.gif

2

When is the transform.position applied to the VisualElement? Could it be that the previous frame’s value get set?

1 Like
3

Sorry for the late reply. I update the position like this in the LateUpdate:

Vector2 nameTagPos = RuntimePanelUtils.CameraTransformWorldToPanel(_IPanel, carPosition, _mainCam);
item.NameTag.style.translate = new StyleTranslate(new Translate(nameTagPos.x, nameTagPos.y, 0));

What do you mean by setting the ‘previous frames’s value’ ? I calculate the new position every frame but somehow there must be a hidden value which is used to update position . I dont know how this works really.

I greatful for every help you can give me!

4

The Problem was, that we used Cinemachine and in the CinemachineBrain we did not set the Update Method to the same Update Method where we calculated the UI positions.

5

Oh, I did not see that coming! Good thing you found this, as it could have taken a lot of time to figure this out if I had to check into your project!

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6

Sorry @Monogenesis unrelated to your question, but could you share how did you get _IPanel here? I’m trying to add hp bar etc but couldn’t figure out how to get the panel

7

Also any thoughts on setting style.translate vs setting transform?

8

I don’t have any unity project near atm, but I guess i just did [SerializedField] private IPanel _IPanel; and then set the reference through the editor.
About the transform I think to have read that using the style property is the preferred way to move an ui Element. But dont take my word for it!

1 Like
9

Thanks!