Struct LodMesh 

pub struct LodMesh {
    pub levels: Vec<GpuMesh>,
    pub thresholds: Vec<f32>,
}

Pre-computed LOD levels for a mesh, generated from a progressive mesh.

Levels are ordered from coarsest (index 0) to finest (last index). Use select_level to pick the appropriate LOD for a given camera distance.

Fields

levels: Vec<GpuMesh>

GPU meshes at each LOD level, index 0 = coarsest

thresholds: Vec<f32>

Distance thresholds for switching between levels. thresholds[i] is the maximum distance at which levels[i+1] should be used.

Implementations

impl LodMesh

pub fn from_progressive_mesh(pm: &ProgressiveMesh, num_levels: usize) -> Self

Create LOD levels by sampling the progressive mesh at evenly-spaced detail ratios.

num_levels is the total number of LOD levels to generate (minimum 2).

pub fn select_level(&self, distance: f32) -> &GpuMesh

Select the appropriate LOD level for a given camera distance.

Returns the coarsest mesh that still looks acceptable at the given distance. Closer distances get finer detail; farther distances get coarser meshes.

pub fn num_levels(&self) -> usize

Number of LOD levels.