Struct nannou::ui::backend::glium::glium::vertex::VertexBufferAny [−][src]
pub struct VertexBufferAny { /* fields omitted */ }
A list of vertices loaded in the graphics card's memory.
Contrary to VertexBuffer
, this struct doesn't know about the type of data
inside the buffer. Therefore you can't map or read it.
This struct is provided for convenience, so that you can have a Vec<VertexBufferAny>
,
or return a VertexBufferAny
instead of a VertexBuffer<MyPrivateVertexType>
.
Methods
impl VertexBufferAny
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impl VertexBufferAny
pub fn get_elements_size(&self) -> usize
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pub fn get_elements_size(&self) -> usize
Returns the number of bytes between two consecutive elements in the buffer.
pub fn len(&self) -> usize
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pub fn len(&self) -> usize
Returns the number of elements in the buffer.
pub fn get_bindings(
&self
) -> &Cow<'static, [(Cow<'static, str>, usize, AttributeType, bool)]>
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pub fn get_bindings(
&self
) -> &Cow<'static, [(Cow<'static, str>, usize, AttributeType, bool)]>
Returns the associated VertexFormat
.
pub unsafe fn into_vertex_buffer<T>(self) -> VertexBuffer<T> where
T: Copy,
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pub unsafe fn into_vertex_buffer<T>(self) -> VertexBuffer<T> where
T: Copy,
Turns the vertex buffer into a VertexBuffer
without checking the type.
pub fn per_instance(&self) -> Result<PerInstance, InstancingNotSupported>
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pub fn per_instance(&self) -> Result<PerInstance, InstancingNotSupported>
Creates a marker that instructs glium to use multiple instances.
Instead of calling surface.draw(&vertex_buffer, ...)
you can call
surface.draw(vertex_buffer.per_instance(), ...)
. This will draw one instance of the
geometry for each element in this buffer. The attributes are still passed to the
vertex shader, but each entry is passed for each different instance.
Methods from Deref<Target = BufferAny>
pub fn as_slice_any(&self) -> BufferAnySlice
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pub fn as_slice_any(&self) -> BufferAnySlice
Builds a slice-any containing the whole subbuffer.
pub unsafe fn as_typed_slice_mut<T>(&mut self) -> BufferMutSlice<T> where
T: Content + ?Sized,
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pub unsafe fn as_typed_slice_mut<T>(&mut self) -> BufferMutSlice<T> where
T: Content + ?Sized,
Builds a mutable typed slice containing the whole subbuffer, without checking the type.
pub unsafe fn as_typed_slice<T>(&self) -> BufferSlice<T> where
T: Content + ?Sized,
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pub unsafe fn as_typed_slice<T>(&self) -> BufferSlice<T> where
T: Content + ?Sized,
Builds a typed slice containing the whole subbuffer, without checking the type.
pub fn get_elements_size(&self) -> usize
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pub fn get_elements_size(&self) -> usize
Returns the size in bytes of each element in the buffer.
pub fn get_elements_count(&self) -> usize
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pub fn get_elements_count(&self) -> usize
Returns the number of elements in the buffer.
pub fn get_context(&self) -> &Rc<Context>
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pub fn get_context(&self) -> &Rc<Context>
Returns the context corresponding to this buffer.
pub fn get_size(&self) -> usize
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pub fn get_size(&self) -> usize
Returns the number of bytes in this subbuffer.
pub fn invalidate(&self)
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pub fn invalidate(&self)
Invalidates the content of the buffer. The data becomes undefined.
This operation is a no-op if the backend doesn't support it and for persistent-mapped buffers.
pub unsafe fn read<T>(&self) -> Result<<T as Content>::Owned, ReadError> where
T: Content,
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pub unsafe fn read<T>(&self) -> Result<<T as Content>::Owned, ReadError> where
T: Content,
UNSTABLE. This function can be removed at any moment without any further notice.
Considers that the buffer is filled with elements of type T
and reads them.
Panic
Panics if the size of the buffer is not a multiple of the size of the data.
For example, trying to read some (u8, u8, u8, u8)
s from a buffer of 7 bytes will panic.
Trait Implementations
impl DerefMut for VertexBufferAny
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impl DerefMut for VertexBufferAny
impl Debug for VertexBufferAny
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impl Debug for VertexBufferAny
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
Formats the value using the given formatter. Read more
impl<T> From<VertexBuffer<T>> for VertexBufferAny where
T: Copy + Send + 'static,
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impl<T> From<VertexBuffer<T>> for VertexBufferAny where
T: Copy + Send + 'static,
fn from(buf: VertexBuffer<T>) -> VertexBufferAny
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fn from(buf: VertexBuffer<T>) -> VertexBufferAny
Performs the conversion.
impl<T> From<Buffer<[T]>> for VertexBufferAny where
T: Vertex + Copy + Send + 'static,
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impl<T> From<Buffer<[T]>> for VertexBufferAny where
T: Vertex + Copy + Send + 'static,
impl<'a> Into<VerticesSource<'a>> for &'a VertexBufferAny
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impl<'a> Into<VerticesSource<'a>> for &'a VertexBufferAny
fn into(self) -> VerticesSource<'a>
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fn into(self) -> VerticesSource<'a>
Performs the conversion.
impl Deref for VertexBufferAny
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impl Deref for VertexBufferAny
Auto Trait Implementations
impl !Send for VertexBufferAny
impl !Send for VertexBufferAny
impl !Sync for VertexBufferAny
impl !Sync for VertexBufferAny