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[−][src]Enum gfx_core::Primitive

#[repr(u8)]

pub enum Primitive {
    PointList,
    LineList,
    LineStrip,
    TriangleList,
    TriangleStrip,
    LineListAdjacency,
    LineStripAdjacency,
    TriangleListAdjacency,
    TriangleStripAdjacency,
    PatchList(PatchSize),
}

Describes what geometric primitives are created from vertex data.

Variants

PointList

Each vertex represents a single point.

LineList

Each pair of vertices represent a single line segment. For example, with [a, b, c, d, e], a and b form a line, c and d form a line, and e is discarded.

LineStrip

Every two consecutive vertices represent a single line segment. Visually forms a "path" of lines, as they are all connected. For example, with [a, b, c], a and b form a line line, and b and c form a line.

TriangleList

Each triplet of vertices represent a single triangle. For example, with [a, b, c, d, e], a, b, and c form a triangle, d and e are discarded.

TriangleStrip

Every three consecutive vertices represent a single triangle. For example, with [a, b, c, d], a, b, and c form a triangle, and b, c, and d form a triangle.

LineListAdjacency

Each quadtruplet of vertices represent a single line segment with adjacency information. For example, with [a, b, c, d], b and c form a line, and a and d are the adjacent vertices.

LineStripAdjacency

Every four consecutive vertices represent a single line segment with adjacency information. For example, with [a, b, c, d, e], [a, b, c, d] form a line segment with adjacency, and [b, c, d, e] form a line segment with adjacency.

TriangleListAdjacency

Each sextuplet of vertices represent a single traingle with adjacency information. For example, with [a, b, c, d, e, f], a, c, and e form a traingle, and b, d, and f are the adjacent vertices, where b is adjacent to the edge formed by a and c, d is adjacent to the edge c and e, and f is adjacent to the edge e and a.

TriangleStripAdjacency

Every even-numbered vertex (every other starting from the first) represents an additional vertex for the triangle strip, while odd-numbered vertices (every other starting from the second) represent adjacent vertices. For example, with [a, b, c, d, e, f, g, h], [a, c, e, g] form a triangle strip, and [b, d, f, h] are the adjacent vertices, where b, d, and f are adjacent to the first triangle in the strip, and d, f, and h are adjacent to the second.

PatchList(PatchSize)

Patch list, used with shaders capable of producing primitives on their own (tessellation)

Trait Implementations

impl Eq for Primitive[src]

impl Copy for Primitive[src]

impl PartialEq<Primitive> for Primitive[src]

impl Clone for Primitive[src]

fn clone_from(&mut self, source: &Self)
1.0.0
[src]

Performs copy-assignment from source. Read more

impl Debug for Primitive[src]

impl Hash for Primitive[src]

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 
1.3.0
[src]

Feeds a slice of this type into the given [Hasher]. Read more

Auto Trait Implementations

impl Send for Primitive

impl Sync for Primitive

Blanket Implementations

impl<T, U> Into for T where
    U: From<T>, [src]

impl<T> ToOwned for T where
    T: Clone, [src]

type Owned = T

The resulting type after obtaining ownership.

impl<T> From for T[src]

impl<T, U> TryFrom for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized, [src]

impl<T> Any for T where
    T: 'static + ?Sized, [src]

impl<T> BorrowMut for T where
    T: ?Sized, [src]

impl<T, U> TryInto for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.