Enum ViewportConversionError 

pub enum ViewportConversionError {
    NoViewportSize,
    PastNearPlane,
    PastFarPlane,
    InvalidData,
}

Error returned when a conversion between world-space and viewport-space coordinates fails.

See world_to_viewport and viewport_to_world.

Variants

NoViewportSize

The pre-computed size of the viewport was not available.

This may be because the Camera was just created and camera_system has not been executed yet, or because the RenderTarget is misconfigured in one of the following ways:

• it references the PrimaryWindow when there is none,
• it references a Window entity that doesn’t exist or doesn’t actually have a Window component,
• it references an Image that doesn’t exist (invalid handle),
• it references a TextureView that doesn’t exist (invalid handle).

PastNearPlane

The computed coordinate was beyond the Camera’s near plane.

Only applicable when converting from world-space to viewport-space.

PastFarPlane

The computed coordinate was beyond the Camera’s far plane.

Only applicable when converting from world-space to viewport-space.

InvalidData

The Normalized Device Coordinates could not be computed because the camera_transform, the world_position, or the projection matrix defined by Projection contained NAN (see world_to_ndc and ndc_to_world).

Trait Implementations

impl Clone for ViewportConversionError

fn clone(&self) -> ViewportConversionError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ViewportConversionError

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

Formats the value using the given formatter.

impl Display for ViewportConversionError

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

Formats the value using the given formatter.

impl Error for ViewportConversionError

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 PartialEq for ViewportConversionError

fn eq(&self, other: &ViewportConversionError) -> 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 Copy for ViewportConversionError

impl Eq for ViewportConversionError

impl StructuralPartialEq for ViewportConversionError