A bounding-volume hierarchy for in-game broad-phase collision detection in rust
- Fast insertion and removal
- Fast iteration over overlaping pairs
- Efficient reuse of memory when volumes are removed (backed by a generational-arena storage)
This library does not attempt to be optimal for:
- ray-tracing (though, basic ray-cast may eventually be supported)
- static scenes
use bvh_arena::{Bvh, volumes::Aabb};
use glam::Vec2; // <-- You may use any math library, or even none.
// Create a bounding volume hierarchy
let mut bvh: Bvh<u8, Aabb<2>> = Bvh::default();
// Insert a bounding volume
let id = bvh.insert(1, Aabb::from_min_max(Vec2::ZERO, Vec2::new(1.0, 1.0)));
// Remove a bounding volume
bvh.remove(id);
// Iteration over overlaping pairs
bvh.for_each_overlaping_pair(|a, b| println!("{a} overlaps {b}"));This crate is no_std compatible but requires a global allocator.
Add to Cargo.toml:
bvh-arena = "1"The minimum supported rust version is currently: 1.56
It may be increased to a newer stable version in a minor release. (but only if needed)
It will be increased to the latest stable version in a major release. (even if not needed)
In the context of building my own collision detection logic, I wanted to use a bounding-volume-hierarchy (BVH) for the broad-phase.
But it seamed that most of the existing BVH implementations are biased toward the ray-tracing use-case. And that means, they provide different API, algorithms and trade-offs than what I am looking for.
This is free and unencumbered software released into the public domain.
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