Enum RenderError 

pub enum RenderError {
    AdapterNotFound,
    DeviceError(String),
    SurfaceCreation(String),
    ShaderFileRead {
        path: String,
        source: Error,
    },
    GlslParse {
        name: String,
        details: String,
    },
    WgslParse {
        name: String,
        details: String,
    },
    ShaderValidation {
        name: String,
        details: String,
    },
    WgslGeneration {
        name: String,
        details: String,
    },
    NoActiveShader(String),
    ImageLoad {
        path: String,
        source: ImageError,
    },
    InvalidTextureData {
        expected: usize,
        actual: usize,
    },
    CubemapGeometry(String),
    CubemapFaceNotFound(String),
    Surface(SurfaceError),
    ScreenshotMap(String),
    ScreenshotImageAssembly,
}

Top-level error type for the GPU rendering engine.

Covers the main failure categories that callers may want to distinguish:

• GPU initialisation (adapter, device, surface)
• Shader compilation and reload
• Image / texture loading
• GPU surface / presentation
• Screenshot capture

Variants

AdapterNotFound

A suitable wgpu GPU adapter could not be found for the given surface.

DeviceError(String)

The wgpu device could not be created or the device was lost.

SurfaceCreation(String)

The wgpu surface could not be created for the window.

ShaderFileRead

The shader source file could not be read from disk.

Fields

path: String

Path to the shader file that could not be read.

source: Error

Underlying I/O error.

GlslParse

The GLSL source could not be parsed (transpilation step 1).

Fields

name: String

Shader name or path.

details: String

Human-readable parse error messages.

WgslParse

The intermediate WGSL source could not be parsed.

Fields

name: String

Shader name or path.

details: String

Human-readable parse error details.

ShaderValidation

The shader module failed naga validation.

Fields

name: String

Shader name or path.

details: String

Human-readable validation error details.

WgslGeneration

WGSL generation (from the naga IR) failed.

Fields

name: String

Shader name or path.

details: String

Human-readable generation error details.

NoActiveShader(String)

A shader reload was requested but no shader is currently active, or a shader compilation error occurred during reload.

ImageLoad

An image file could not be opened or decoded.

Fields

path: String

Path to the image that failed to load.

source: ImageError

Underlying image error.

InvalidTextureData

The supplied raw RGBA byte slice has an unexpected length.

Fields

expected: usize

Expected byte count (width * height * 4).

actual: usize

Actual byte count received.

CubemapGeometry(String)

A cubemap face image is not square or all faces are not the same size.

CubemapFaceNotFound(String)

A required cubemap face file could not be found on disk.

Surface(SurfaceError)

Surface::get_current_texture() failed (timeout, outdated, lost, …).

ScreenshotMap(String)

The GPU buffer could not be mapped back to CPU memory, or a render step during screenshot capture failed.

ScreenshotImageAssembly

The pixel data could not be assembled into a final RgbaImage.

Trait Implementations

impl Debug for RenderError

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

Formats the value using the given formatter.

impl Display for RenderError

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

Formats the value using the given formatter.

impl Error for RenderError

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.

impl From<CreateSurfaceError> for RenderError

fn from(e: CreateSurfaceError) -> Self

Converts to this type from the input type.

impl From<RequestDeviceError> for RenderError

fn from(e: RequestDeviceError) -> Self

Converts to this type from the input type.

impl From<SurfaceError> for RenderError

fn from(source: SurfaceError) -> Self

Converts to this type from the input type.