Struct BindlessBufferDescriptor

pub struct BindlessBufferDescriptor {
    pub binding_number: BindingNumber,
    pub bindless_index: BindlessIndex,
    pub size: Option<usize>,
}

Describes a bindless buffer.

Unlike samplers and textures, each buffer in a bind group gets its own unique bind group entry. That is, there isn’t any bindless_buffers binding array to go along with bindless_textures_2d, bindless_samplers_filtering, etc. Therefore, this descriptor contains two indices: the binding number and the bindless index. The binding number is the @binding number used in the shader, while the bindless index is the index of the buffer in the bindless index table (which is itself conventionally bound to binding number 0).

When declaring the buffer in a derived implementation crate::render_resource::AsBindGroup with syntax like #[uniform(BINDLESS_INDEX, StandardMaterialUniform, bindless(BINDING_NUMBER)], the bindless index is BINDLESS_INDEX, and the binding number is BINDING_NUMBER. Note the order.

Fields

binding_number: BindingNumber

The actual binding number of the buffer.

This is declared with @binding in WGSL. When deriving crate::render_resource::AsBindGroup, this is the BINDING_NUMBER in #[uniform(BINDLESS_INDEX, StandardMaterialUniform, bindless(BINDING_NUMBER)].

bindless_index: BindlessIndex

The index of the buffer in the bindless index table.

In the shader, this is the index into the table bound to binding 0. When deriving crate::render_resource::AsBindGroup, this is the BINDLESS_INDEX in #[uniform(BINDLESS_INDEX, StandardMaterialUniform, bindless(BINDING_NUMBER)].

size: Option<usize>

The size of the buffer in bytes, if known.

Trait Implementations

impl Clone for BindlessBufferDescriptor

fn clone(&self) -> BindlessBufferDescriptor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BindlessBufferDescriptor

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for BindlessBufferDescriptor