Struct InstanceBuffer 

pub struct InstanceBuffer {
    pub data: Vec<InstanceData>,
    pub gpu_handle: u64,
    pub capacity: usize,
    pub dirty: bool,
    pub generation: u32,
}

A buffer of instance data for batch instanced rendering.

Fields

data: Vec<InstanceData>

CPU-side instance data.

gpu_handle: u64

GPU buffer handle (opaque).

capacity: usize

Capacity (number of instances the buffer can hold before realloc).

dirty: bool

Whether the CPU data has been modified since last GPU upload.

generation: u32

Generation counter.

Implementations

impl InstanceBuffer

pub fn new(capacity: usize) -> Self

pub fn push(&mut self, instance: InstanceData)

Add an instance.

pub fn clear(&mut self)

Clear all instances.

pub fn len(&self) -> usize

Number of instances.

pub fn is_empty(&self) -> bool

Whether the buffer is empty.

pub fn upload(&mut self)

Upload to GPU (simulated).

pub fn memory_bytes(&self) -> usize

Memory usage in bytes.

pub fn sort_by_material(&mut self)

Sort instances by material ID for better batching.

Trait Implementations

impl Debug for InstanceBuffer

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

Formats the value using the given formatter.

impl Default for InstanceBuffer

fn default() -> Self

Returns the “default value” for a type.