Enum gfx::texture::FilterMethod

pub enum FilterMethod {
    Scale,
    Mipmap,
    Bilinear,
    Trilinear,
    Anisotropic(u8),
}

[−] Expand description

How to filter the texture when sampling. They correspond to increasing levels of quality, but also cost. Mipmap, trilinear and anisotropic filtering require mipmapping, but the other filtering methods do not.

These names are somewhat poor, in that “bilinear” is really just doing linear filtering on each axis, and it is only bilinear in the case of 2D textures. Similarly for trilinear, it is really Quadralinear(?) for 3D textures. Alas, these names are simple, and match certain intuitions ingrained by many years of public use of inaccurate terminology.

Variants

Scale

[−] Expand description

The dumbest filtering possible, nearest-neighbor interpolation.

Mipmap

[−] Expand description

Add simple mipmapping.

Bilinear

[−] Expand description

Sample multiple texels within a single mipmap level to increase quality.

Trilinear

[−] Expand description

Sample multiple texels across two mipmap levels to increase quality.

Anisotropic(u8)

[−] Expand description

Anisotropic filtering with a given “max”, must be between 1 and 16, inclusive.

Trait Implementations

impl Clone for FilterMethod[+]

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pub fn clone(&self) -> FilterMethod[−]

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for FilterMethod

impl Debug for FilterMethod[+]

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

Formats the value using the given formatter.

impl Eq for FilterMethod

impl Hash for FilterMethod[+]

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pub fn hash<__H>(&self, state: &mut __H) where
    __H: Hasher, [−]

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 FilterMethod[+]

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pub fn cmp(&self, other: &FilterMethod) -> 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<FilterMethod> for FilterMethod[+]

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pub fn eq(&self, other: &FilterMethod) -> bool[−]

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

pub fn ne(&self, other: &FilterMethod) -> bool[−]

This method tests for !=.

impl PartialOrd<FilterMethod> for FilterMethod[+]

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pub fn partial_cmp(&self, other: &FilterMethod) -> 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 StructuralEq for FilterMethod

impl StructuralPartialEq for FilterMethod