Enum cogl::MaterialFilter

#[non_exhaustive]
pub enum MaterialFilter {
    Nearest,
    Linear,
    NearestMipmapNearest,
    LinearMipmapNearest,
    NearestMipmapLinear,
    LinearMipmapLinear,
    // some variants omitted
}

Texture filtering is used whenever the current pixel maps either to more than one texture element (texel) or less than one. These filter enums correspond to different strategies used to come up with a pixel color, by possibly referring to multiple neighbouring texels and taking a weighted average or simply using the nearest texel.

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.

Nearest

Measuring in manhatten distance from the, current pixel center, use the nearest texture texel

Linear

Use the weighted average of the 4 texels nearest the current pixel center

NearestMipmapNearest

Select the mimap level whose texel size most closely matches the current pixel, and use the MaterialFilter::Nearest criterion

LinearMipmapNearest

Select the mimap level whose texel size most closely matches the current pixel, and use the MaterialFilter::Linear criterion

NearestMipmapLinear

Select the two mimap levels whose texel size most closely matches the current pixel, use the MaterialFilter::Nearest criterion on each one and take their weighted average

LinearMipmapLinear

Select the two mimap levels whose texel size most closely matches the current pixel, use the MaterialFilter::Linear criterion on each one and take their weighted average

Trait Implementations

impl Clone for MaterialFilter

fn clone(&self) -> MaterialFilter

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for MaterialFilter

impl Debug for MaterialFilter

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

Formats the value using the given formatter.

impl Display for MaterialFilter

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

Formats the value using the given formatter.

impl Eq for MaterialFilter

impl<'a> FromValue<'a> for MaterialFilter

unsafe fn from_value(value: &Value) -> Self

Safety

impl<'a> FromValueOptional<'a> for MaterialFilter

unsafe fn from_value_optional(value: &Value) -> Option<Self>

Safety

impl Hash for MaterialFilter

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Ord for MaterialFilter

fn cmp(&self, other: &MaterialFilter) -> Ordering

This method returns an Ordering between self and other.

#[must_use]

pub fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]

pub fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]

pub fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<MaterialFilter> for MaterialFilter

fn eq(&self, other: &MaterialFilter) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &MaterialFilter) -> bool

This method tests for !=.

impl PartialOrd<MaterialFilter> for MaterialFilter

fn partial_cmp(&self, other: &MaterialFilter) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]

pub fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]

pub fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]

pub fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]

pub fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl SetValue for MaterialFilter

unsafe fn set_value(value: &mut Value, this: &Self)

Safety

impl StaticType for MaterialFilter

fn static_type() -> Type

Returns the type identifier of Self.

impl StructuralEq for MaterialFilter

impl StructuralPartialEq for MaterialFilter