Struct MDLMaterialSemantic 

#[repr(transparent)]
pub struct MDLMaterialSemantic(pub NSUInteger);

Available on crate feature MDLMaterial only.

MDLMaterialSemantic

The material semantics are identifiers for material properties formally identified by one of the standard material descriptors.

When files containing material properties are loaded and translated by ModelIO, an appropriate standard material descriptor will be chosen, and any properties translated from the loaded file can be retrieved using one of these semantics.

MDLMaterialSemanticBaseColor The inherent color of a surface to be used as a modulator during shading. Default is 50% gray

MDLMaterialSemanticSubsurface, The degree to which light scatters under the surface of a material

MDLMaterialSemanticMetallic A blend between a material behaving as a dielectric material at zero, and a metal at one.

MDLMaterialSemanticSpecular Specular response to incident light

MDLMaterialSemanticSpecularExponent Power of the specular exponent in the case that a Blinn/Phong BSDF is in use.

MDLMaterialSemanticSpecularTint At zero, the specular highlight will use the hue, saturation, and intensity of incoming light to color the specular response; at one, the material’s base color, and the light’s intensity will be used.

MDLMaterialSemanticRoughness Controls diffuse and specular response. A value of zero is smooth and shiny. At one, a diffuse material will retroreflect, and the specular highlight will be very spread out.

MDLMaterialSemanticAnisotropic The degree to which the specular highlight is elongated in the direction of the local tangent basis. A mesh that does not have a tangent basis will not respond to this parameter.

MDLMaterialSemanticAnisotropicRotation The degree to which the anisotropy is rotated relative to the direction of the local tangent basis. Values from zero to one are mapped to zero to two PI.

MDLMaterialSemanticSheen A specular tint that appears at glancing angles on an object

MDLMaterialSemanticSheenTint At zero, the specular highlight will use the hue, saturation, and intensity of incoming light to color the specular response; at one, the material’s base color, and the light’s intensity will be used.

MDLMaterialSemanticClearcoat A second specular highlight, much like the gloss that results from a clear coat on an automotive finish

MDLMaterialSemanticClearcoatGloss The glossiness of the clear coat highlight.

MDLMaterialSemanticEmission A value that is to be emitted as radiance by a surface

MDLMaterialSemanticBump A value that perturbs surface normals according to the local gradient of the property

MDLMaterialSemanticOpacity The opacity of the surface

MDLMaterialSemanticInterfaceIndexOfRefraction n1 in Schlick’s equation, typically 1.0 for air

MDLMaterialSemanticMaterialIndexOfRefraction n2 in Schlick’s equation

MDLMaterialSemanticObjectSpaceNormal A value that perturbs surface normals in object space

MDLMaterialSemanticTangentSpaceNormal A value that perturbs surface normals in a local tangent space

MDLMaterialSemanticDisplacement Displacement of a surface relative to surface normal

MDLMaterialSemanticDisplacementScale Scaling factor for displacement

MDLMaterialSemanticAmbientOcclusion Ambient occlusion describes the accessibility of the surface to the surrounding radiant environment and is typically used to attenuate it. It is not intended to attenuate direct illumination sources.

MDLMaterialSemanticAmbientOcclusionScale The degree to which the ambient occlusion values are applied

MDLMaterialSemanticUserDefined = 0x8000 Properties with this value are created when material properties are translated for which no known semantic applies. Semantics defined at greater than this value are available to be user defined. The first value is also used to indicate

See also Apple’s documentation

Tuple Fields

0: NSUInteger

Implementations

impl MDLMaterialSemantic

pub const BaseColor: Self

pub const Subsurface: Self

pub const Metallic: Self

pub const Specular: Self

pub const SpecularExponent: Self

pub const SpecularTint: Self

pub const Roughness: Self

pub const Anisotropic: Self

pub const AnisotropicRotation: Self

pub const Sheen: Self

pub const SheenTint: Self

pub const Clearcoat: Self

pub const ClearcoatGloss: Self

pub const Emission: Self

pub const Bump: Self

pub const Opacity: Self

pub const InterfaceIndexOfRefraction: Self

pub const MaterialIndexOfRefraction: Self

pub const ObjectSpaceNormal: Self

pub const TangentSpaceNormal: Self

pub const Displacement: Self

pub const DisplacementScale: Self

pub const AmbientOcclusion: Self

pub const AmbientOcclusionScale: Self

pub const None: Self

pub const UserDefined: Self

Trait Implementations

impl Clone for MDLMaterialSemantic

fn clone(&self) -> MDLMaterialSemantic

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MDLMaterialSemantic

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

Formats the value using the given formatter.

impl Encode for MDLMaterialSemantic

const ENCODING: Encoding = NSUInteger::ENCODING

The Objective-C type-encoding for this type.

impl Hash for MDLMaterialSemantic

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 MDLMaterialSemantic

fn cmp(&self, other: &MDLMaterialSemantic) -> 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,

Restrict a value to a certain interval.

impl PartialEq for MDLMaterialSemantic

fn eq(&self, other: &MDLMaterialSemantic) -> 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 PartialOrd for MDLMaterialSemantic

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl RefEncode for MDLMaterialSemantic

const ENCODING_REF: Encoding

The Objective-C type-encoding for a reference of this type.

impl Copy for MDLMaterialSemantic

impl Eq for MDLMaterialSemantic

impl StructuralPartialEq for MDLMaterialSemantic