Struct VertexBuffer

pub struct VertexBuffer<G>
where
    G: Gl,
{
    pub elements_per_data: u32,
    pub ele_type: BufferElementType,
    pub byte_offset: u32,
    pub stride: u32,
    /* private fields */
}

A subset of a data buffer for use with OpenGL vertex data.

A data buffer may contain a lot of data per vertex, such as position, normal, tangent, color etc. A VertexBuffer is then a subset of this data - perhaps picking out just the position, for example, for a set of vertices

OpenGL will have one copy of the data for all the VertexBuffer

Fields

elements_per_data: u32

Number of elements per vertex (1 to 4, or 4, 9 or 16)

ele_type: BufferElementType

The type of each element

byte_offset: u32

Offset from start of buffer to first byte of data

stride: u32

Stride of data in the buffer - 0 for elements_per_data*sizeof(ele_type)

Implementations

impl<G> VertexBuffer<G>

where G: Gl,

pub fn gl_buffer(&self) -> &<G as Gl>::Buffer

Get the gl_buffer associated with the data, assuming its gl_create method has been invoked at least once

pub fn bind_to_vao_attr( &self, context: &mut G, attr_id: &<<G as Gl>::Program as GlProgram>::GlAttrId, )

Bind the buffer as a vertex attribute to the current VAO

Trait Implementations

impl<G> Clone for VertexBuffer<G>

where G: Gl,

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<G> Debug for VertexBuffer<G>

where G: Gl + Debug,

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

Formats the value using the given formatter.

impl<G> Default for VertexBuffer<G>

where G: Gl,

fn default() -> Self

Returns the “default value” for a type.

impl<G> Display for VertexBuffer<G>

where G: Gl,

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

Formats the value using the given formatter.

impl<G> DefaultIndentedDisplay for VertexBuffer<G>

where G: Gl,