Big Space

Huge worlds, high performance, no dependencies, ecosystem compatibility. Read the docs

Highlights

Enough precision to render proton-sized meshes across the observable universe.
Uses Transform, making it compatible with most of the Bevy ecosystem.
No added dependencies.
Absolute coordinates without drift, unlike camera-relative or periodic recentering solutions.
Chunks the world into integer grids, from i8 up to i128.
Grids can be nested.
Spatial hashing for fast grid cell lookups and neighbor search.
Spatial partitioning to group sets of disconnected entities.
3-5x faster than Bevy's transform propagation for wide hierarchies.
👉 Extensive documentation you should read.

Showcase

Floating origin demonstration

https://github.com/user-attachments/assets/9ce5283f-7d48-47dc-beef-9a7626858ed4

Proton to Observable Universe scale

https://github.com/user-attachments/assets/430624ee-e3a4-4ba3-b7cf-72f3d7f00b5f

Bevy Version Support

bevy	big_space
0.15	0.8, 0.9
0.14	0.7
0.13	0.5, 0.6
0.12	0.4
0.11	0.3
0.10	0.2
0.9	0.1

License

This project is dual licensed:

MIT License (LICENSE-MIT or http://opensource.org/licenses/MIT)
Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

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