Enum IndexBuffer

pub enum IndexBuffer<R: Resources> {
    Auto,
    Index16(Buffer<R, u16>),
    Index32(Buffer<R, u32>),
}

Type of index-buffer used in a Slice.

The Auto variant represents a hypothetical index-buffer from 0 to infinity. In other words, all vertices get processed in order. Do note that the Slice’s start and end restrictions still apply for this variant. To render every vertex in the VertexBuffer, you would set start to 0, and end to the VertexBuffer’s length.

The Index* variants represent an actual Buffer with a list of vertex-indices. The numeric suffix specifies the amount of bits to use per index. Each of these also contains a base-vertex. This is the index of the first vertex in the VertexBuffer. This value will be added to every index in the index-buffer, effectively moving the start of the VertexBuffer to this base-vertex.

Construction & Handling

A IndexBuffer can be constructed using the IntoIndexBuffer trait, from either a slice or a Buffer of integers, using a factory.

An IndexBuffer is exclusively used to create Slices.

Variants

Auto

Represents a hypothetical index-buffer from 0 to infinity. In other words, all vertices get processed in order.

Index16(Buffer<R, u16>)

An index-buffer with unsigned 16 bit indices.

Index32(Buffer<R, u32>)

An index-buffer with unsigned 32 bit indices.

Trait Implementations

impl<R: Clone + Resources> Clone for IndexBuffer<R>

fn clone(&self) -> IndexBuffer<R>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<R: Debug + Resources> Debug for IndexBuffer<R>

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

Formats the value using the given formatter.

impl<R: Resources> Default for IndexBuffer<R>

fn default() -> Self

Returns the “default value” for a type.

impl<R: Hash + Resources> Hash for IndexBuffer<R>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<R: Resources> IntoIndexBuffer<R> for IndexBuffer<R>

fn into_index_buffer<F: Factory<R> + ?Sized>(self, _: &mut F) -> IndexBuffer<R>

Turns self into an IndexBuffer.

impl<R: PartialEq + Resources> PartialEq for IndexBuffer<R>

fn eq(&self, other: &IndexBuffer<R>) -> bool

Tests for self and other values to be equal, and is used by ==.

const fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<R: Eq + Resources> Eq for IndexBuffer<R>

impl<R: Resources> StructuralPartialEq for IndexBuffer<R>