Struct tobj::Mesh

pub struct Mesh {
    pub positions: Vec<f32>,
    pub normals: Vec<f32>,
    pub texcoords: Vec<f32>,
    pub indices: Vec<u32>,
    pub material_id: Option<usize>,
}

A mesh made up of triangles loaded from some OBJ file

Fields

positions: Vec<f32>

Flattened 3 component floating point vectors, storing positions of vertices in the mesh

normals: Vec<f32>

Flattened 3 component floating point vectors, storing normals of vertices in the mesh. Not all meshes have normals, if no normals are specified this Vec will be empty

texcoords: Vec<f32>

Flattened 2 component floating point vectors, storing texture coordinates of vertices in the mesh. Not all meshes have normals, if no texture coordinates are specified this Vec will be empty

indices: Vec<u32>

Indices for vertices of each triangle. Each face in the mesh is a triangle and the indices specify the position, normal and texture coordinate for each vertex of the face.

Example:

// For some mesh with positions, normals and texcoords load the attributes for vertex k
let i = mesh.indices[k];
vec3 pos = vec3 { x: mesh.positions[i * 3], y: mesh.positions[i * 3 + 1],
                  z: mesh.positions[i * 3 + 2] };

vec3 normal = vec3 { x: mesh.normals[i * 3], y: mesh.normals[i * 3 + 1],
                     z: mesh.normals[i * 3 + 2] };

vec2 texcoord = vec2 { u: mesh.texcoords[i * 2], v: mesh.texcoords[i * 2 + 1] };

material_id: Option<usize>

Optional material id associated with this mesh. The material id indexes into the Vec of Materials loaded from the associated MTL file

Methods

impl Mesh

fn new(pos: Vec<f32>, norm: Vec<f32>, tex: Vec<f32>, indices: Vec<u32>, material_id: Option<usize>) -> Mesh

Create a new mesh specifying the geometry for the mesh

fn empty() -> Mesh

Create a new empty mesh

Trait Implementations

impl Clone for Mesh

fn clone(&self) -> Mesh

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Mesh

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.