Struct GpuShaderStorageBuffer 

pub struct GpuShaderStorageBuffer {
    pub buffer: Buffer,
    pub had_data: bool,
}

A storage buffer that is prepared as a RenderAsset and uploaded to the GPU.

Fields

buffer: Buffer

had_data: bool

Trait Implementations

impl RenderAsset for GpuShaderStorageBuffer

type SourceAsset = ShaderStorageBuffer

The representation of the asset in the “main world”.

type Param = Res<'static, RenderDevice>

Specifies all ECS data required by RenderAsset::prepare_asset.

fn asset_usage( source_asset: &<GpuShaderStorageBuffer as RenderAsset>::SourceAsset, ) -> RenderAssetUsages

Whether or not to unload the asset after extracting it to the render world.

fn take_gpu_data( source: &mut <GpuShaderStorageBuffer as RenderAsset>::SourceAsset, previous_gpu_asset: Option<&GpuShaderStorageBuffer>, ) -> Result<<GpuShaderStorageBuffer as RenderAsset>::SourceAsset, AssetExtractionError>

Make a copy of the asset to be moved to the RenderWorld / gpu. Heavy internal data (pixels, vertex attributes) should be moved into the copy, leaving this asset with only metadata. An error may be returned to indicate that the asset has already been extracted, and should not have been modified on the CPU side (as it cannot be transferred to GPU again). The previous GPU asset is also provided, which can be used to check if the modification is valid.

fn prepare_asset( source_asset: <GpuShaderStorageBuffer as RenderAsset>::SourceAsset, _: AssetId<<GpuShaderStorageBuffer as RenderAsset>::SourceAsset>, render_device: &mut <<GpuShaderStorageBuffer as RenderAsset>::Param as SystemParam>::Item<'_, '_>, _: Option<&GpuShaderStorageBuffer>, ) -> Result<GpuShaderStorageBuffer, PrepareAssetError<<GpuShaderStorageBuffer as RenderAsset>::SourceAsset>>

Prepares the RenderAsset::SourceAsset for the GPU by transforming it into a RenderAsset.

fn byte_len(source_asset: &Self::SourceAsset) -> Option<usize>

Size of the data the asset will upload to the gpu. Specifying a return value will allow the asset to be throttled via RenderAssetBytesPerFrame.

fn unload_asset( _source_asset: AssetId<Self::SourceAsset>, _param: &mut <Self::Param as SystemParam>::Item<'_, '_>, )

Called whenever the RenderAsset::SourceAsset has been removed.