Translation y axis ignored for effects with `SimulationSpace::Local`

[Rabbival]

Crate versions
[dependencies]
bevy = { version = "0.18.0", default-features = false, features = [
"gltf_animation",
"bevy_asset",
"bevy_color",
"bevy_core_pipeline",
"bevy_gilrs",
"bevy_gizmos",
"bevy_gltf",
"bevy_pbr",
"bevy_picking",
"bevy_render",
"bevy_scene",
"bevy_sprite",
"sprite_picking",
"bevy_state",
"bevy_text",
"bevy_ui",
"ui_picking",
"bevy_window",
"bevy_winit",
"custom_cursor",
"default_font",
"hdr",
"multi_threaded",
"png",
"smaa_luts",
"sysinfo_plugin",
"tonemapping_luts",
"webgl2",
"x11",
] }
bevy_hanabi = { version = "0.18" , default-features = false, features = ["2d"] }

Describe the bug
When spawning effects on local space, the y axis is ignored. Meaning, even if the effect is spawned with Transform::from_translation(Vec3::Y) it would spawn on Vec3::ZERO

Expected behavior
Y axis acknowledgement

To Reproduce
It can be reproduced on the init example (of the crate) by changing the Y of the spawned effects instead of the x

Screenshots
Here's what the init example looks like when y is changed instead of x:
https://github.com/user-attachments/assets/869d158d-daf6-4493-96a3-02b083858926

[djeedai]

To Reproduce
It can be reproduced on the init example (of the crate) by changing the Y of the spawned effects instead of the x

You mean changing this:

bevy_hanabi/examples/init.rs

Line 115 in db782db

Transform::from_translation(Vec3::new(-20., 0., 0.)),

to:

- Transform::from_translation(Vec3::new(-20., 0., 0.)),
+ Transform::from_translation(Vec3::new(0., -20., 0.)),

?

[djeedai]

I'm not sure why you use the webgl2 feature? Are you targeting web? Hanabi won't work without WebGPU.

[Rabbival]

To Reproduce
It can be reproduced on the init example (of the crate) by changing the Y of the spawned effects instead of the x

You mean changing this:

bevy_hanabi/examples/init.rs

Line 115 in db782db

Transform::from_translation(Vec3::new(-20., 0., 0.)),
to:

• Transform::from_translation(Vec3::new(-20., 0., 0.)),

• Transform::from_translation(Vec3::new(0., -20., 0.)),
  ?

Yes, that change exactly. And it seems to work for you, but how?
I saw the gpu dependency comment, when I run the example I do it from a hanabi cloned repo, so there shouldn't be any difference between my code and yours.
Yet, your particle effects seem to acknowledge their Y axis.
Unless... did you also define their simulation space as Local?
It only happens when running with local space

[djeedai]

All effects in that demo are local-space simulation, otherwise the particles wouldn't rotate around (they would spawn and never move in world space).

bevy_hanabi/examples/init.rs

Line 49 in db782db

.with_simulation_space(SimulationSpace::Local)

[Rabbival]

All effects in that demo are local-space simulation, otherwise the particles wouldn't rotate around (they would spawn and never move in world space).

bevy_hanabi/examples/init.rs

Line 49 in db782db

.with_simulation_space(SimulationSpace::Local)

So we're running the exact same code getting different results. Could be something wrong with my gpu? How can I check that?

[Rabbival]

Here's my (laptop built in) gpu:

(I'm using windows 11)