Struct GBufferStats 

pub struct GBufferStats {

    pub total_memory_bytes: u64,
    pub per_attachment_memory: HashMap<String, u64>,
    pub width: u32,
    pub height: u32,
    pub color_attachment_count: u32,
    pub fill_rate_mpix_per_sec: f64,
    pub bandwidth_gb_per_write: f64,
    pub resize_count: u32,
    pub clears_this_frame: u32,
    pub geometry_draw_calls: u32,
    pub avg_triangles_per_draw: u32,
    pub overdraw_ratio: f32,
    pub bytes_per_frame: u64,
}

Statistics about G-Buffer memory usage and performance.

Fields

total_memory_bytes: u64

Total GPU memory used by all attachments (bytes).

per_attachment_memory: HashMap<String, u64>

Memory per attachment.

width: u32

Current resolution.

height: u32

color_attachment_count: u32

Number of color attachments.

fill_rate_mpix_per_sec: f64

Estimated fill rate in megapixels per second (set externally).

bandwidth_gb_per_write: f64

Estimated bandwidth usage in GB/s for a single full G-Buffer write.

resize_count: u32

Number of times the G-Buffer has been resized.

clears_this_frame: u32

Number of times the G-Buffer has been cleared this frame.

geometry_draw_calls: u32

Number of draw calls that wrote to the G-Buffer this frame.

avg_triangles_per_draw: u32

Average triangle count per draw call (estimated).

overdraw_ratio: f32

Overdraw ratio (pixels written / total pixels). 1.0 = no overdraw.

bytes_per_frame: u64

Total bytes written per frame (approx).

Implementations

impl GBufferStats

pub fn new() -> Self

pub fn from_layout(layout: &GBufferLayout, width: u32, height: u32) -> Self

Calculate stats from a layout and resolution.

pub fn update_frame(&mut self, draw_calls: u32, overdraw: f32)

Update frame-specific stats.

pub fn summary(&self) -> String

Format stats as a human-readable summary.

Trait Implementations

impl Clone for GBufferStats

fn clone(&self) -> GBufferStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GBufferStats

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

Formats the value using the given formatter.

impl Default for GBufferStats

fn default() -> Self

Returns the “default value” for a type.