Struct naga::EarlyDepthTest

pub struct EarlyDepthTest {
    pub conservative: Option<ConservativeDepth>,
}

Early fragment tests.

In a standard situation, if a driver determines that it is possible to switch on early depth test, it will.

Typical situations when early depth test is switched off:

• Calling discard in a shader.
• Writing to the depth buffer, unless ConservativeDepth is enabled.

To use in a shader:

• GLSL: layout(early_fragment_tests) in;
• HLSL: Attribute earlydepthstencil
• SPIR-V: ExecutionMode EarlyFragmentTests
• WGSL: @early_depth_test

For more, see:

• https://www.khronos.org/opengl/wiki/Early_Fragment_Test#Explicit_specification
• https://docs.microsoft.com/en-us/windows/win32/direct3dhlsl/sm5-attributes-earlydepthstencil
• https://www.khronos.org/registry/SPIR-V/specs/unified1/SPIRV.html#Execution_Mode

Fields

conservative: Option<ConservativeDepth>

Trait Implementations

impl Clone for EarlyDepthTest

fn clone(&self) -> EarlyDepthTest

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for EarlyDepthTest

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

Formats the value using the given formatter.

impl Hash for EarlyDepthTest

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

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for EarlyDepthTest

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

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for EarlyDepthTest

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for EarlyDepthTest

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

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

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

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

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

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

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

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

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 Copy for EarlyDepthTest

impl Eq for EarlyDepthTest

impl StructuralPartialEq for EarlyDepthTest