Enum Comparison 

pub enum Comparison {
    Never,
    Always,
    Equal,
    NotEqual,
    Less,
    LessOrEqual,
    Greater,
    GreaterOrEqual,
}

Comparison to perform for depth / stencil operations. a is the incoming fragment’s data and b is the fragment’s data that is already stored.

Variants

Never

Test never succeeds.

Always

Test always succeeds.

Equal

Test succeeds if a == b.

NotEqual

Test succeeds if a != b.

Less

Test succeeds if a < b.

LessOrEqual

Test succeeds if a <= b.

Greater

Test succeeds if a > b.

GreaterOrEqual

Test succeeds if a >= b.

Trait Implementations

impl Clone for Comparison

fn clone(&self) -> Comparison

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Comparison

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

Formats the value using the given formatter.

impl PartialEq for Comparison

fn eq(&self, other: &Comparison) -> 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 Comparison

impl Eq for Comparison

impl StructuralPartialEq for Comparison