Struct plexus::primitive::generate::Normal

pub struct Normal<S = ()> { /* private fields */ }

Meta-attribute for surface normals.

Describes the surface normals of a polytope. The generated data is derived from the type parameter S, which typically requires EuclideanSpace.

Examples

Generating raw buffers with normal data of a $uv$-sphere:

use decorum::R64;
use nalgebra::Point3;
use plexus::index::{Flat3, HashIndexer};
use plexus::prelude::*;
use plexus::primitive::generate::Normal;
use plexus::primitive::sphere::UvSphere;

let (indices, normals) = UvSphere::new(8, 8)
    .polygons::<Normal<Point3<R64>>>()
    .map_vertices(|normal| normal.into_inner())
    .triangulate()
    .index_vertices::<Flat3, _>(HashIndexer::default());

Trait Implementations

impl<S> AttributeGenerator<Normal<S>> for Cube where
    S: EuclideanSpace + FiniteDimensional<N = U3>, 

type State = ()

impl<S> AttributeGenerator<Normal<S>> for UvSphere where
    S: EuclideanSpace + FiniteDimensional<N = U3>, 

type State = ()

impl<S> AttributePolygonGenerator<Normal<S>> for Cube where
    S: EuclideanSpace + FiniteDimensional<N = U3>, 

type Output = NGon<Unit<<S as EuclideanSpace>::CoordinateSpace>, 4_usize>

fn polygon_from(&self, state: &Self::State, index: usize) -> Self::Output

impl<S> AttributePolygonGenerator<Normal<S>> for UvSphere where
    S: EuclideanSpace + FiniteDimensional<N = U3>, 

type Output = BoundedPolygon<Unit<<S as EuclideanSpace>::CoordinateSpace>>

fn polygon_from(&self, _: &Self::State, index: usize) -> Self::Output

impl<S> AttributeVertexGenerator<Normal<S>> for Cube where
    S: EuclideanSpace + FiniteDimensional<N = U3>, 

type Output = Unit<<S as EuclideanSpace>::CoordinateSpace>

fn vertex_count(&self) -> usize

fn vertex_from(&self, _: &Self::State, index: usize) -> Self::Output

impl<S> AttributeVertexGenerator<Normal<S>> for UvSphere where
    S: EuclideanSpace + FiniteDimensional<N = U3>, 

type Output = Unit<<S as EuclideanSpace>::CoordinateSpace>

fn vertex_count(&self) -> usize

fn vertex_from(&self, _: &Self::State, index: usize) -> Self::Output

impl<S> IndexingPolygonGenerator<Normal<S>> for Cube

type Output = NGon<usize, 4_usize>

fn indexing_polygon(&self, index: usize) -> Self::Output

impl<S> IndexingPolygonGenerator<Normal<S>> for UvSphere

type Output = BoundedPolygon<usize>

fn indexing_polygon(&self, index: usize) -> Self::Output

impl<S> Attribute for Normal<S>