Struct GpuBroadphase 

pub struct GpuBroadphase {
    pub sweep_axis: usize,
    pub margin: f32,
    pub stats: CollisionKernelStats,
}

GPU-accelerated broadphase using Sort-and-Sweep (SAP).

Sorts AABB projections along a chosen axis (default X), sweeps for overlapping intervals, then validates the remaining axes and records broadphase pairs.

Fields

sweep_axis: usize

Axis along which to sort/sweep: 0=X, 1=Y, 2=Z.

margin: f32

Inflation margin applied to each AABB before testing.

stats: CollisionKernelStats

Stats from the most recent dispatch.

Implementations

impl GpuBroadphase

pub fn new(sweep_axis: usize, margin: f32) -> Self

Create a new GpuBroadphase with the given sweep axis and margin.

pub fn choose_best_axis(aabbs: &[AabbGpu]) -> usize

Choose the axis with the widest spread for better SAP performance.

Returns the axis index (0, 1, or 2).

pub fn dispatch(&mut self, aabbs: &[AabbGpu]) -> Vec<CollisionPair>

Run the SAP broadphase and return overlapping pairs.

Complexity: O(n log n + k) where k is the number of pairs found.

Trait Implementations

impl Debug for GpuBroadphase

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for GpuBroadphase

fn default() -> GpuBroadphase

Returns the “default value” for a type.