Struct Mesh 

pub struct Mesh<'a> { /* private fields */ }

A parsed 3D mesh backed by slices into the caller’s cooked blob.

Cheap to construct (just bounds-checks the header + computes sub-slice offsets). Cheap to pass around – table &[u8] slices, an index stride, a flags u16, and the counts.

Implementations

impl<'a> Mesh<'a>

pub fn from_bytes(bytes: &'a [u8]) -> Result<Self, ParseError>

Parse a cooked .psxm blob. Returns a Mesh view that borrows into bytes.

pub fn vertex_count(&self) -> u16

Vertex count.

pub fn vert_count(&self) -> u16

👎Deprecated:

renamed to vertex_count

Renamed to Self::vertex_count.

pub fn face_count(&self) -> u16

Triangle count.

pub fn flags(&self) -> u16

Mesh feature flags (see [psxed_format::mesh::flags]).

pub fn has_face_colors(&self) -> bool

Does the blob carry a face-colour table?

pub fn has_normals(&self) -> bool

Does the blob carry per-vertex normals? Required for any GTE- or CPU-lit rendering path.

pub fn vertex(&self, i: u16) -> Vec3I16

Decode vertex i as a Q3.12 Vec3I16. Returns Vec3I16::ZERO if the index is out of range – keeps the render path branch-free, callers who care can check against Self::vertex_count first.

pub fn face(&self, i: u16) -> (u16, u16, u16)

Triangle i’s three vertex indices. Returns (0, 0, 0) for an out-of-range index.

pub fn face_color(&self, i: u16) -> Option<(u8, u8, u8)>

Triangle i’s flat colour, or None if the blob doesn’t carry a face-colour table.

pub fn vertex_normal(&self, i: u16) -> Option<Vec3I16>

Per-vertex Q3.12 normal. Returns None if the blob lacks a normal table (HAS_NORMALS flag clear) or i is out of range. Components are unit-length-ish (Q3.12 quantisation introduces sub-ULP error but the GTE lighting path is tolerant).

Trait Implementations

impl<'a> Clone for Mesh<'a>

fn clone(&self) -> Mesh<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Mesh<'a>

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

Formats the value using the given formatter.

impl<'a> Copy for Mesh<'a>