Struct UniformGridGpu 

pub struct UniformGridGpu {
    pub cell_size: f32,
    pub origin: [f32; 3],
    pub dims: [u32; 3],
}

Uniform 3-D grid for GPU broadphase.

Fields

cell_size: f32

Cell size (same in all dimensions).

origin: [f32; 3]

World-space origin of the grid [ox, oy, oz].

dims: [u32; 3]

Number of cells in each dimension [nx, ny, nz].

Implementations

impl UniformGridGpu

pub fn new(cell_size: f32, origin: [f32; 3], dims: [u32; 3]) -> Self

Create a new uniform grid.

pub fn cell_of(&self, pos: [f32; 3]) -> [i32; 3]

Compute the cell index [ix, iy, iz] for a world-space position.

pub fn insert_aabbs(&self, aabbs: &[AabbGpu]) -> HashMap<u64, Vec<u32>>

Insert all AABBs into the uniform grid.

Each AABB is inserted into every cell it overlaps. Returns a map from packed cell key to the list of body_ids in that cell.

pub fn query_pairs(&self, aabbs: &[AabbGpu]) -> Vec<(u32, u32)>

Query all overlapping AABB pairs using the uniform grid.

Returns deduplicated pairs (a, b) with a < b.

Trait Implementations

impl Clone for UniformGridGpu

fn clone(&self) -> UniformGridGpu

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for UniformGridGpu

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

Formats the value using the given formatter.