Struct IndirectBatchSet

#[repr(C)]
pub struct IndirectBatchSet {
    pub indirect_parameters_count: u32,
    pub indirect_parameters_base: u32,
}

A structure, shared between CPU and GPU, that holds the number of on-GPU indirect draw commands for each batch set.

A batch set is a set of meshes that may be multi-drawn together.

If the current hardware and driver support multi_draw_indirect_count, the indirect parameters building shader increments Self::indirect_parameters_count as it generates indirect parameters. The multi_draw_indirect_count command reads Self::indirect_parameters_count in order to determine how many commands belong to each batch set.

Fields

indirect_parameters_count: u32

The number of indirect parameter commands (i.e. batches) in this batch set.

The CPU sets this value to 0 before uploading this structure to GPU. The indirect parameters building shader increments this value as it creates indirect parameters. Then the multi_draw_indirect_count command reads this value in order to determine how many indirect draw commands to process.

indirect_parameters_base: u32

The offset within the IndirectParametersBuffers::indexed_data or IndirectParametersBuffers::non_indexed_data of the first indirect draw command for this batch set.

The CPU fills out this value.

Trait Implementations

impl Clone for IndirectBatchSet

fn clone(&self) -> IndirectBatchSet

Returns a copy of the value.

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

Performs copy-assignment from source.

impl CreateFrom for IndirectBatchSet

where Self: ShaderType<ExtraMetadata = StructMetadata<2usize>>, for<'__, '__> u32: CreateFrom,

fn create_from<B: BufferRef>(reader: &mut Reader<B>) -> Self

impl Default for IndirectBatchSet

fn default() -> IndirectBatchSet

Returns the “default value” for a type.

impl ReadFrom for IndirectBatchSet

where Self: ShaderType<ExtraMetadata = StructMetadata<2usize>>, for<'__, '__> u32: ReadFrom,

fn read_from<B: BufferRef>(&mut self, reader: &mut Reader<B>)

impl ShaderSize for IndirectBatchSet

where u32: ShaderSize,

const SHADER_SIZE: NonZero<u64> = _

Represents WGSL Size (equivalent to ShaderType::min_size)

impl ShaderType for IndirectBatchSet

where u32: ShaderType + ShaderSize,

fn size(&self) -> NonZeroU64

Returns the size of Self at runtime

fn min_size() -> NonZero<u64>

Represents the minimum size of Self (equivalent to GPUBufferBindingLayout.minBindingSize)

fn assert_uniform_compat()

Asserts that Self meets the requirements of the uniform address space restrictions on stored values and the uniform address space layout constraints

impl WriteInto for IndirectBatchSet

where Self: ShaderType<ExtraMetadata = StructMetadata<2usize>>, for<'__, '__> u32: WriteInto,

fn write_into<B: BufferMut>(&self, writer: &mut Writer<B>)

impl Zeroable for IndirectBatchSet

fn zeroed() -> Self

Calls zeroed.

impl Copy for IndirectBatchSet

impl Pod for IndirectBatchSet