Enum DistanceModel 

#[repr(u32)]
pub enum DistanceModel {
    None = 0,
    InverseDistance = 1,
    LinearDistance = 2,
    ExponentDistance = 3,
}

Distance model defines how volume of sound will decay when distance to listener changes.

Variants

None = 0

No distance attenuation at all.

InverseDistance = 1

Distance will decay using following formula:

clamped_distance = min(max(distance, radius), max_distance) attenuation = radius / (radius + rolloff_factor * (clamped_distance - radius))

where - radius - of source at which it has maximum volume, max_distance - distance at which decay will stop, rolloff_factor - coefficient that defines how fast volume will decay

Notes

This is default distance model of context.

LinearDistance = 2

Distance will decay using following formula:

clamped_distance = min(max(distance, radius), max_distance) attenuation = 1.0 - radius * (clamped_distance - radius) / (max_distance - radius)

where - radius - of source at which it has maximum volume, max_distance - distance at which decay will stop

Notes

As you can see rolloff_factor is ignored here because of linear law.

ExponentDistance = 3

Distance will decay using following formula:

clamped_distance = min(max(distance, radius), max_distance) (clamped_distance / radius) ^ (-rolloff_factor)

where - radius - of source at which it has maximum volume, max_distance - distance at which decay will stop, rolloff_factor - coefficient that defines how fast volume will decay

Trait Implementations

impl Clone for DistanceModel

fn clone(&self) -> DistanceModel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DistanceModel

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

Formats the value using the given formatter.

impl Default for DistanceModel

fn default() -> DistanceModel

Returns the “default value” for a type.

impl PartialEq for DistanceModel

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

impl Eq for DistanceModel

impl StructuralPartialEq for DistanceModel