Struct bevy::pbr::MeshCullingDataBuffer

pub struct MeshCullingDataBuffer(/* private fields */);
Expand description

A GPU buffer that holds the information needed to cull meshes on GPU.

At the moment, this simply holds each mesh’s AABB.

To avoid wasting CPU time in the CPU culling case, this buffer will be empty if GPU culling isn’t in use.

Methods from Deref<Target = RawBufferVec<MeshCullingData>>§

pub fn buffer(&self) -> Option<&Buffer>

Returns a handle to the buffer, if the data has been uploaded.

pub fn binding(&self) -> Option<BindingResource<'_>>

Returns the binding for the buffer if the data has been uploaded.

pub fn capacity(&self) -> usize

Returns the amount of space that the GPU will use before reallocating.

pub fn len(&self) -> usize

Returns the number of items that have been pushed to this buffer.

pub fn is_empty(&self) -> bool

Returns true if the buffer is empty.

pub fn push(&mut self, value: T) -> usize

Adds a new value and returns its index.

pub fn append(&mut self, other: &mut RawBufferVec<T>)

pub fn set_label(&mut self, label: Option<&str>)

Changes the debugging label of the buffer.

The next time the buffer is updated (via [reserve]), Bevy will inform the driver of the new label.

pub fn get_label(&self) -> Option<&str>

Returns the label

pub fn reserve(&mut self, capacity: usize, device: &RenderDevice)

Creates a Buffer on the RenderDevice with size at least std::mem::size_of::<T>() * capacity, unless a such a buffer already exists.

If a Buffer exists, but is too small, references to it will be discarded, and a new Buffer will be created. Any previously created Buffers that are no longer referenced will be deleted by the RenderDevice once it is done using them (typically 1-2 frames).

In addition to any BufferUsages provided when the RawBufferVec was created, the buffer on the RenderDevice is marked as BufferUsages::COPY_DST.

pub fn write_buffer(&mut self, device: &RenderDevice, queue: &RenderQueue)

Queues writing of data from system RAM to VRAM using the RenderDevice and the provided RenderQueue.

Before queuing the write, a reserve operation is executed.

pub fn truncate(&mut self, len: usize)

Reduces the length of the buffer.

pub fn clear(&mut self)

Removes all elements from the buffer.

pub fn values(&self) -> &Vec<T>

pub fn values_mut(&mut self) -> &mut Vec<T>

Trait Implementations§

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impl Default for MeshCullingDataBuffer

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fn default() -> MeshCullingDataBuffer

Returns the “default value” for a type. Read more
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impl Deref for MeshCullingDataBuffer

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type Target = RawBufferVec<MeshCullingData>

The resulting type after dereferencing.
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fn deref(&self) -> &<MeshCullingDataBuffer as Deref>::Target

Dereferences the value.
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impl DerefMut for MeshCullingDataBuffer

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fn deref_mut(&mut self) -> &mut <MeshCullingDataBuffer as Deref>::Target

Mutably dereferences the value.
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impl Resource for MeshCullingDataBuffer
where MeshCullingDataBuffer: Send + Sync + 'static,

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