Struct IndexBuffer 

pub struct IndexBuffer {
    pub index_count: usize,
    pub wide: bool,
    pub topology: IndexTopology,
    /* private fields */
}

An index buffer supporting u16 or u32 indices.

Fields

index_count: usize

Number of indices stored.

wide: bool

Whether indices are 32-bit (true) or 16-bit (false).

topology: IndexTopology

Primitive topology.

Implementations

impl IndexBuffer

pub fn new_u32(topology: IndexTopology) -> Self

Create an empty u32 triangle index buffer.

pub fn new_u16(topology: IndexTopology) -> Self

Create an empty u16 triangle index buffer.

pub fn upload_u32(&mut self, indices: &[u32])

Upload u32 indices.

pub fn upload_u16(&mut self, indices: &[u16])

Upload u16 indices.

pub fn get_index(&self, i: usize) -> Option<u32>

Read the i-th index as u32.

pub fn byte_size(&self) -> usize

Size in bytes.

Trait Implementations

impl Clone for IndexBuffer

fn clone(&self) -> IndexBuffer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IndexBuffer

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

Formats the value using the given formatter.