Struct VdbSparseGrid 

pub struct VdbSparseGrid {
    pub name: String,
    pub grid_type: String,
    pub voxel_size: f64,
    pub background: f64,
    pub voxels: Vec<VdbVoxel>,
}

A sparse VDB volume grid (minimal ASCII representation).

Fields

name: String

Grid name.

grid_type: String

Grid type (“float”, “vec3s”, etc.).

voxel_size: f64

World-space voxel size.

background: f64

Background (default) value.

voxels: Vec<VdbVoxel>

Populated voxels.

Implementations

impl VdbSparseGrid

pub fn new(name: impl Into<String>, voxel_size: f64, background: f64) -> Self

Create a new VdbSparseGrid.

pub fn add_voxel(&mut self, i: i32, j: i32, k: i32, value: f64)

Add a voxel.

pub fn from_scalar_field( field: &ScalarField3D, threshold: f64, name: impl Into<String>, ) -> Self

Populate from a ScalarField3D (only non-background voxels).

pub fn write_ascii_header(&self) -> String

Write a minimal ASCII VDB-like header.

pub fn n_active(&self) -> usize

Number of active voxels.

pub fn bbox(&self) -> [(i32, i32); 3]

Bounding box as [(imin,imax),(jmin,jmax),(kmin,kmax)].

Trait Implementations

impl Clone for VdbSparseGrid

fn clone(&self) -> VdbSparseGrid

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VdbSparseGrid

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

Formats the value using the given formatter.