Struct bevy_render::render_resource::StorageBuffer

pub struct StorageBuffer<T: ShaderType> { /* private fields */ }

Stores data to be transferred to the GPU and made accessible to shaders as a storage buffer.

Storage buffers can be made available to shaders in some combination of read/write mode, and can store large amounts of data. Note however that WebGL2 does not support storage buffers, so consider alternative options in this case.

Storage buffers can store runtime-sized arrays, but only if they are the last field in a structure.

The contained data is stored in system RAM. write_buffer queues copying of the data from system RAM to VRAM. Storage buffers must conform to std430 alignment/padding requirements, which is automatically enforced by this structure.

Other options for storing GPU-accessible data are:

• DynamicStorageBuffer
• UniformBuffer
• DynamicUniformBuffer
• GpuArrayBuffer
• BufferVec
• Texture

Implementations

impl<T: ShaderType + WriteInto> StorageBuffer<T>

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

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

pub fn set(&mut self, value: T)

pub fn get(&self) -> &T

pub fn get_mut(&mut self) -> &mut T

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

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

pub fn add_usages(&mut self, usage: BufferUsages)

Add more BufferUsages to the buffer.

This method only allows addition of flags to the default usage flags.

The default values for buffer usage are BufferUsages::COPY_DST and BufferUsages::STORAGE.

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.

If there is no GPU-side buffer allocated to hold the data currently stored, or if a GPU-side buffer previously allocated does not have enough capacity, a new GPU-side buffer is created.

Trait Implementations

impl<T: ShaderType + Default> Default for StorageBuffer<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T: ShaderType> From<T> for StorageBuffer<T>

fn from(value: T) -> Self

Converts to this type from the input type.