Struct GpuGridResident 

pub struct GpuGridResident {
    pub vsid: u32,
    pub origin_chunk: [i32; 3],
    pub chunks_dims: [u32; 3],
    pub total_chunks: u32,
    pub occupancy: Buffer,
    pub color_offsets: Buffer,
    pub colors: Buffer,
    pub chunk_colors_base: Buffer,
    pub chunk_occupancy: Buffer,
    pub occupancy_bytes: u64,
    pub color_offsets_bytes: u64,
    pub colors_bytes: u64,
}

GPU-resident storage for one grid’s chunks. Lives until the host drops it; in GPU.6 (edit invalidation) we’ll re-upload individual chunks via partial buffer writes.

Fields

vsid: u32

origin_chunk: [i32; 3]

chunks_dims: [u32; 3]

total_chunks: u32

occupancy: Buffer

color_offsets: Buffer

colors: Buffer

chunk_colors_base: Buffer

chunk_occupancy: Buffer

occupancy_bytes: u64

color_offsets_bytes: u64

colors_bytes: u64

Implementations

impl GpuGridResident

pub fn upload(device: &Device, info: &GridUpload) -> Self

Pack + upload info. All buffers are sized to fit total_chunks regardless of which chunks are actually present in info.chunks — missing chunks have their chunk_occupancy bit clear and their per-chunk slices zero-filled, which the GPU.4 marcher reads as “no voxels here, skip”.

Panics

If a chunk’s vsid doesn’t match info.vsid.

pub fn resident_bytes(&self) -> u64

Total resident bytes — sum of all five storage buffers. Used by the demo’s startup print.