Enum ViewportError 

#[non_exhaustive]
pub enum ViewportError {
    EmptyMesh {
        positions: usize,
        indices: usize,
    },
    MeshLengthMismatch {
        positions: usize,
        normals: usize,
    },
    MeshIndexOutOfBounds {
        index: usize,
        count: usize,
    },
    InvalidVertexIndex {
        vertex_index: u32,
        vertex_count: usize,
    },
    InvalidTextureData {
        expected: usize,
        actual: usize,
    },
    MeshSlotEmpty {
        index: usize,
    },
    AttributeNotFound {
        mesh_id: usize,
        name: String,
    },
    AttributeLengthMismatch {
        expected: usize,
        got: usize,
    },
}

Errors that can occur during mesh upload and manipulation.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

EmptyMesh

Mesh data has empty positions or indices.

Fields

positions: usize

Number of positions provided.

indices: usize

Number of indices provided.

MeshLengthMismatch

Positions and normals arrays have different lengths.

Fields

positions: usize

Number of positions provided.

normals: usize

Number of normals provided.

MeshIndexOutOfBounds

Mesh index is out of bounds for the mesh storage.

Fields

index: usize

The requested mesh index.

count: usize

The number of meshes currently stored.

InvalidVertexIndex

An index buffer entry references a vertex that does not exist.

Fields

vertex_index: u32

The offending index value.

vertex_count: usize

Total number of vertices.

InvalidTextureData

Texture RGBA data has an unexpected size.

Fields

expected: usize

Expected byte count (width * height * 4).

actual: usize

Actual byte count provided.

MeshSlotEmpty

Attempted to access or replace a mesh slot that is empty (previously removed).

Fields

index: usize

The slot index that was accessed.

AttributeNotFound

Named scalar attribute not found on the given mesh.

Fields

mesh_id: usize

The mesh index that was accessed.

name: String

The attribute name that was requested.

AttributeLengthMismatch

Attribute data length does not match the existing buffer.

replace_attribute requires the same vertex count as the original upload.

Fields

expected: usize

Expected number of f32 elements (original attribute length).

got: usize

Actual number of f32 elements provided.

Trait Implementations

impl Debug for ViewportError

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

Formats the value using the given formatter.

impl Display for ViewportError

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

Formats the value using the given formatter.

impl Error for ViewportError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.