You wouldn’t happen to have an example for your needs?
Labels should be attached to meshes (and should you interact with them?)
There’s recently been a number of topics around this subject in the forum. Choices are basically around using a dynamicTexture, cloning GUI for mesh or using a shader. I think you can exclude the meshwritter (my opinion).
Here a few links that might be of interest to you:
To get better advise, I would really recom you give some more information (or create a small PG).
Meanwhile, have a great day
In this case things went complex, Thin Instances seems to be a good option.
Sadly there are no docs about per-instance uv offset, so custom ShaderMaterial or Node Materials could be needed, with shader or Node Materials, you can parse the per-instance color (vec4) as a uv offset (vec2) and a uv scaling (vec2), so Texture atlas can be used and all the labels would require one texture.
With shader or Node Materials, you can pass camera-related stuff into the shader before each frame, making it possible to compute the billboard transform on gpu.