Dekirisu

Today I'm giving a talk about Ratatui at RustNation UK! 🎉🦀🐁

#rustlang #rustnation #rustnationuk #conference

Changing my setup for an undefined timeframe:
🐧 arch linux (btw) -> #nixOS
🦆 i3wm -> sway
🐬 xfce4-terminal -> foot

Announcing Rust 1.93.1 | Rust Blog Empowering everyone to build reliable and efficient software.

Rust 1.93.1 has been released.

This point release fixes three regressions that slipped into in Rust 1.93.0: an internal compiler error affecting rustfmt, a false positive in a clippy lint, and an issue with the wasm32-wasip2 target.

See the blog post for details: blog.rust-lang.org/2026/02/12/R...

I'm back & decided to change things up! 🫠

❌️ ditch QWERTY
✅️ develop & use my own smol layout
✅️ use badly cut paper as cover

My #keyboard now looks like a space invader! (unintended) 👾

Just 'lost' hours of gamedev progress to PokeRogue.

Lost an extremely lucky run to a water-type #pokemon that was immune to grass - didn't know that was a thing. 🦆

(And the only moves I had left were grassy 🫡)

🏞️ added environment variables:
🍃 temperature, rel. humidity & wind speed
🪿 they directly & indirectly influence various things:
🦫 ..like tire temp. warm-up/cool-down, grip, degradation, acceleration, etc.

#rustlang #bevyengine #gamedev #indiegame

🔥 added tire temperatures
🪿 ..it affects grip & degradation speed
🦫 (..and indirectly other things)

#rustlang #bevyengine #gamedev #screenshotsaturday

❄️ foggy winter styling

#rustlang #bevyengine #gamedev

🛞 tires now have durability w/ ui
🦆 added milage ui
🐇 simpler input ui
🦫 harsh keyboard inputs can be smoothed

#rustlang #bevyengine #gamedev

🌄 new daytime styling
🌲 new environment
🦜 reworked textures

#rustlang #bevyengine #gamedev

Took a step back to rewrite stuff... ☠️
#rustlang #bevyengine #gamedev

👂 made a more chill engine sound

...the one before kinda annoyed me over time 🫠

#rustlang #bevyengine #gamedev #screenshotsaturday

✨ major shading/style rework
💫 (kinda merging all past style tests into one)
🐿️ rework of a few track barriers (the glassy ones)

#rustlang #bevyengine #gamedev

🚗 new asphalt style
🌄 re-added a simple skybox (just a gradient)

#rustlang #bevyengine #gamedev

👂 first try of skidding SFX
🦆 ..and suspension compression SFX
🐿️ (..or however one would call it)
🐦 made the engine sound more 'futuristic'

#rustlang #bevyengine #gamedev #sounddesign

nah, custom shader bindings, a bit like decals but optimized for skids 🦆

🛞 finished the first version of skid-marks

#rustlang #bevyengine #gamedev

🛞 defined where & when skid-marks should be

#rustlang #bevyengine #gamedev

Worked on deki-drive a bit!
🐦 bevy: 0.16 -> 0.17
🍃 avian3d: 0.3 -> 0.4
🦜 style changes
🛞 physics changes

#rustlang #bevyengine #gamedev #screenshotsaturday

Rust.

Announcing Rust 1.91.1 | Rust Blog Empowering everyone to build reliable and efficient software.

Rust 1.91.1 has been released. This point release fixes two regressions that slipped into in Rust 1.91.0: one that affects Wasm, and one that affects Cargo on illumos.

See the blog post for details: blog.rust-lang.org/2025/11/10/R...

Also migrated my modded GltfPlugin to bevy 0.17
🦜 does the same as the original, but:
🐿️ ..has easy access points to change stuff 'on load' through a trait

🐱 github.com/dekirisu/bev...

#rustlang #bevyengine

🐿️ changed day/night lighting

#rustlang #bevyengine #gamedev

🦀 bevy/mevy UI Hot-Reload Experiment 🐦

Had a weird idea how to do bevy_ui hot-reload.
..without a dioxus or bevy feature 🦆

Here's a small test where only position, size & border works. 🦀

#rustlang #bevyengine

I was wondering how it would look like when:
🦞 not using bevys pbr material
🦜 making my own material (the darker looking one)

(would 'lose' lighting/reflections etc.)

#rustlang #bevyengine #gamedev

GitHub - dekirisu/mevy: Magical Bevy Macros: Simplified bevy_ui & bevy_ecs Syntax! Magical Bevy Macros: Simplified bevy_ui & bevy_ecs Syntax! - dekirisu/mevy

🐦 Mevy now works for #bevyengine v0.17 too
🐱 github.com/dekirisu/mevy

Announcing Rust 1.91.0 | Rust Blog Empowering everyone to build reliable and efficient software.

Rust 1.91.0 has been released! 🌈 🦀

This version brings you tier 1 support for aarch64-pc-windows-msvc, warnings for dangling pointers to locals, new methods on AtomicPtr, array::repeat, BTreeMap::extract_if, const TypeId::of, and more!

Check out the announcement: blog.rust-lang.org/2025/10/30/R...

Looks almost the same, but:
🦆 less draw calls (partially custom GPU instancing)
🐇 less entities -> less transform propagation etc.
🐿️ less data cloning

🦞 downside: disabled 'indirect drawing'

#rustlang #bevyengine #gamedev

It's crazy how much optimization-potential there is using bevy & rust 🦀

Dove a bit more into performance profiling and the engine source code - got a few ideas that should improve performance (on CPU & GPU) by quite a lot for my use case without many trade-offs (besides the development time). 🐿️

Rare Mevy (Macros for Bevy) Update! 🦜
🦆 added a shorter UI syntax
🪁 ..inspired by TailwindCSS
🐇 ..and LSP hovers still working

🐱 github.com/dekirisu/mev...

(for bevy v0.16 still, partially works for v0.17)
#rustlang #bevyengine #gamedev