help with making a 3d healthbar

Atlas

I have a scene titled healthbar set up like this sprite3D<control<viewportcontainer<viewport<progressbar with the texture of the sprite being set as the viewport

I'm instancing healthbar in my enemy scene and then the enemy in the game world and I'm getting these errors

Cannot get path of node as it is not in a scene tree. (Node not found: "Viewport" (relative to "").) ViewportTexture: Path to node is invalid. Viewport Texture must be set to use it.

TwistedTwigleg

Based on the error, it sounds like the ViewportContainer is having issues getting the Viewport and/or the Sprite3D is having difficulties getting the texture from the Viewport. Probably the NodePath to the Viewport texture in the Sprite3D is not setup correctly, as the path being passed (in line 2 of the error) is trying to access Viewport as a direct child of the node and the node isn't there.

To fix it, I think all you'd need to do is delete the ViewportTexture in the Sprite3D, and then make a new ViewportTexture in the editor and assign it to the Viewport.

In this case though, I do not think you need a ViewportContainer if you are using a Sprite3D to display the healthbar. You should be able to use a setup like this:

Sprite3D
- Viewport
- ProgressBar

Then set own world to true in the Viewport and set it's size so it's large enough to show the entire ProgressBar node. You might also want to enable transparent bg as well.

Then in the texture property of the Sprite3D you can create a new ViewportTexture and set it to the Viewport. However, I've found that doing it through code can be a bit more reliable than in the editor:

extends Sprite3D
func _ready():
	texture = get_node("Viewport").get_texture()