koobas.hobune.stream
Is updating 1 character in a 200 character Text object more expensive than a 10 character Object
A. Does Unity Text cache the pixels being printed to screen and only update they that change?
OR
B. Does Unity Text rewrite all pixels in the Text every time it gets set?
Best Answer
Font data is cached as textures - yes. UnityEngine.UI.Text component's "pixels" are not cached anywhere. Any string you wish to display is converted into a stream of vertex data (vertex pos,uv coords etc.), more commonly known as a "mesh", and sent to GPU for rendering.
So
Is updating 1 character in a 200 character
Textobject more expensive than a 10 character Object
no. It doesn't matter (for GPU). Just make sure you're not re-creating this string every frame (on CPU-side) because that would make a small difference indeed (GC pressure).
