Struct Vertex 

pub struct Vertex {
    pub position: [f32; 3],
    pub tex_coords: [f32; 2],
    pub normal: Vec3,
    pub tangent: Vec3,
    pub bitangent: Vec3,
}

A general mesh. This should be sufficiently versatile to use for a number of purposes.

Fields

position: [f32; 3]

Where the vertex is located in space

tex_coords: [f32; 2]

AKA UV mapping. https://en.wikipedia.org/wiki/UV_mapping

normal: Vec3

The direction the vertex normal is facing in

tangent: Vec3

“Tangent and Binormal vectors are vectors that are perpendicular to each other and the normal vector which essentially describe the direction of the u,v texture coordinates with respect to the surface that you are trying to render. Typically they can be used alongside normal maps which allow you to create sub surface lighting detail to your model(bumpiness).” This is used to orient normal maps; corresponds to the +X texture direction.

bitangent: Vec3

A bitangent vector is the result of the Cross Product between Vertex Normal and Vertex Tangent which is a unit vector perpendicular to both vectors at a given point. This is used to orient normal maps; corresponds to the +Y texture direction.

Implementations

impl Vertex

pub fn new(position: [f32; 3], normal: Vec3) -> Self

Initialize position; change the others after init.

pub fn to_bytes(&self) -> [u8; 56]

Trait Implementations

impl Clone for Vertex

fn clone(&self) -> Vertex

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Vertex

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

Formats the value using the given formatter.

impl Copy for Vertex