Struct FrameResources 

pub struct FrameResources {
    pub vertex_buffer: Option<Buffer>,
    pub index_buffer: Option<Buffer>,
    pub vertex_buffer_host: Option<Vec<u8>>,
    pub index_buffer_host: Option<Vec<u8>>,
    pub vertex_buffer_size: usize,
    pub index_buffer_size: usize,
}

Per-frame resources

This corresponds to the FrameResources struct in the C++ implementation. Each frame in flight has its own set of vertex and index buffers.

Fields

vertex_buffer: Option<Buffer>

GPU vertex buffer

index_buffer: Option<Buffer>

GPU index buffer

vertex_buffer_host: Option<Vec<u8>>

Host-side vertex buffer (for staging)

index_buffer_host: Option<Vec<u8>>

Host-side index buffer (for staging)

vertex_buffer_size: usize

Current vertex buffer size in vertices

index_buffer_size: usize

Current index buffer size in indices

Implementations

impl FrameResources

pub fn new() -> Self

Create new empty frame resources

pub fn ensure_vertex_buffer_capacity( &mut self, device: &Device, required_vertices: usize, ) -> RendererResult<()>

Ensure vertex buffer can hold the required number of vertices

pub fn ensure_index_buffer_capacity( &mut self, device: &Device, required_indices: usize, ) -> RendererResult<()>

Ensure index buffer can hold the required number of indices

pub fn upload_vertex_data( &mut self, queue: &Queue, vertices: &[DrawVert], ) -> RendererResult<()>

Upload vertex data to the GPU buffer

pub fn upload_index_data( &mut self, queue: &Queue, indices: &[DrawIdx], ) -> RendererResult<()>

Upload index data to the GPU buffer

pub fn vertex_buffer(&self) -> Option<&Buffer>

Get the vertex buffer for rendering

pub fn index_buffer(&self) -> Option<&Buffer>

Get the index buffer for rendering

pub fn is_ready(&self) -> bool

Check if buffers are ready for rendering

pub fn stats(&self) -> FrameResourcesStats

Get buffer statistics for debugging

Trait Implementations

impl Default for FrameResources

fn default() -> Self

Returns the “default value” for a type.