`TextShadow` doesn't work with `Text2d`

[djeedai]

Bevy version

0.16

What you did

Text2d::new("text"),
TextShadow {
    offset: Vec2::splat(3.),
    color: Color::BLACK,
},

What went wrong

There's no shadow

Additional information

Docs don't mention anything about working or not with any particular text component, so I'm assuming this should work.

[ickshonpe]

It didn't occur to me to mention it in the docs because TextShadow is a bevy_ui component, not bevy_sprite or bevy_text. Which implicitly implies that TextShadow is UI only. That's not obvious if you just pulled it in with the prelude though, so I think you are right and it does need an explanation.

The shadow rendering for Text2d is a little trickier because of z-ordering, but it's not difficult to get to work I think. The TextShadow PR was deliberately very minimal and limited, only changes that would be quick to get through review so we could get it into 0.15. Unlike with bevy_ui, users can easily add text shadows manually with Text2d. You just add a second text node displaying the same text but darker and offset with a lower z depth so it is drawn behind.