Struct VramBudget 

pub struct VramBudget {
    pub total_bytes: u64,
    pub available_bytes: Option<u64>,
}

Hardware VRAM figures for the GPU a viewport runs on, from vram_budget.

Pair this with ResidentBytes to drive an eviction budget: pick a ceiling as a fraction of total_bytes and free resources (free_mesh / free_texture / free_lod_group) as ResidentBytes::total approaches it.

total_bytes is the total device-local VRAM the backend reports and is available everywhere. available_bytes is the backend’s live free-memory estimate: Some on Metal, and None on Vulkan, whose live figure needs VK_EXT_memory_budget, which wgpu does not enable. When it is None, size the budget against total_bytes and track usage with ResidentBytes.

Fields

total_bytes: u64

Total device-local VRAM in bytes.

available_bytes: Option<u64>

Backend-reported free VRAM in bytes, where available.

Trait Implementations

impl Clone for VramBudget

fn clone(&self) -> VramBudget

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for VramBudget

impl Debug for VramBudget

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

Formats the value using the given formatter.

impl Eq for VramBudget

impl PartialEq for VramBudget

fn eq(&self, other: &VramBudget) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for VramBudget