bevy/crates/bevy_ui
ickshonpe ba1b0092e5
Extract UI nodes into a Vec (#17618)
# Objective

Extract UI nodes into a `Vec` instead of an `EntityHashMap`.

## Solution

Extract UI nodes into a `Vec` instead of an `EntityHashMap`.
Store an index into the `Vec` in each transparent UI item.
Compare both the index and render entity in prepare so there aren't any
collisions.

## Showcase

Yellow this PR, Red main

```
cargo run --example many_buttons --release --features trace_tracy
```

`extract_uinode_background_colors`
<img width="448" alt="extract_uinode_background_colors"
src="https://github.com/user-attachments/assets/09c0f434-ab4f-4c0f-956a-cf31e9060061"
/>

`extract_uinode_images`
<img width="587" alt="extract_uinode_images"
src="https://github.com/user-attachments/assets/43246d7f-d22c-46d0-9a07-7e13d5379f56"
/>

`prepare_uinodes`
<img width="441" alt="prepare_uinodes_vec"
src="https://github.com/user-attachments/assets/cc9a7eac-60e9-42fa-8093-bce833a1c153"
/>
2025-01-30 23:25:07 +00:00
..
src Extract UI nodes into a Vec (#17618) 2025-01-30 23:25:07 +00:00
Cargo.toml Move hashbrown and foldhash out of bevy_utils (#17460) 2025-01-23 16:46:08 +00:00
README.md Add README.md to all crates (#13184) 2024-05-02 18:56:00 +00:00

Bevy UI

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