Struct GpuDrawArgs 

#[repr(C)]
pub struct GpuDrawArgs {
    pub index_count: u32,
    pub index_offset: u32,
    pub base_vertex: u32,
    pub flags: u32,
}

Per-object draw parameters consumed by the GPU-driven compute cull kernel. Parallel to GpuObjectData (one record per DrawObject, same index): GpuObjectData carries the cull bounds the kernel tests, this carries the indexed-draw arguments the kernel encodes into the indirect command buffer (Metal MTLIndirectCommandBuffer / DirectX ExecuteIndirect argument buffer / Vulkan multiDrawIndexedIndirect buffer) when an object survives the cull.

The kernel reads flags to decide an object’s fate without re-deriving it from the AABB: ENABLED gates the per-frame visible / resident state, CULLABLE selects whether the object is frustum/distance-tested at all (mirrors DrawObject::cullable(): non-cullable objects always draw).

Layout (16 bytes) must stay in sync with the GpuDrawArgs struct in every backend’s cull kernel: main.metal / the Metal build_cull_pipeline MSL, the inline cull HLSL in directx/pipeline.rs, and the inline cull GLSL in vulkan/pipeline.rs.

Fields

index_count: u32

Number of indices to draw (DrawObject::index_count).

index_offset: u32

Element offset into the shared index buffer (DrawObject::index_offset).

base_vertex: u32

Value added to every index before the vertex fetch (DrawObject::base_vertex; always >= 0 in practice).

flags: u32

Cull-decision bits; see DrawArgsFlags.

Trait Implementations

impl Clone for GpuDrawArgs

fn clone(&self) -> GpuDrawArgs

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for GpuDrawArgs

impl NoUninit for GpuDrawArgs