Struct Levers 

pub struct Levers {
    pub curl: f32,
    pub vigor: f32,
    pub lean: f32,
    pub bias: f32,
}

The four audio-driven shape levers (ADR-0075), applied in SVD space.

Built to be safe rather than checked, which is the whole point of the parameterization: curl and lean are rotations and cannot affect contractivity at all, bias moves probabilities and changes only where points land, and vigor is the one that touches the singular values — so it is the one, and the only one, behind a clamp.

Fields

curl: f32

Radians added to every map’s θ. Fronds curl and uncurl. Unconditionally safe: R is an isometry.

vigor: f32

Multiplier on every singular value, under SIGMA_CEILING. A bushier, deeper, denser figure — and the only lever that can reach the cliff.

lean: f32

Radians every translation vector is rotated about the origin by, bending the plant. Translations do not enter contractivity, so this is unconditionally safe.

bias: f32

Shifts sampling weight between the body maps (canonical indices 0 and 1) and the branch maps (2 and 3), renormalizing. The shape is untouched and only the density distribution moves — the cheapest genuinely organic response in the set.

Inert on the dragon, whose two real maps both live in the branch slots (its body slots are the padding), so there is nothing to shift weight away from. Worth a note in the content pass rather than a special case.

Implementations

impl Levers

pub const NEUTRAL: Self

Every lever at rest. The fit is built here, and resolve at these values is bit-identical to resolve with no levers at all — every operation below is guarded so that neutrality is exact rather than approximate.

pub const EXTREMES: [Self; 2]

The documented extremes, for the sweep that has to cover them.

curl and lean are angles, so their “extreme” is a look choice rather than a limit — a full turn is the same figure. vigor is quoted well past what SIGMA_CEILING will grant, precisely so the sweep exercises the clamp; bias is quoted at the ends of its own range.

Trait Implementations

impl Clone for Levers

fn clone(&self) -> Levers

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Levers

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

Formats the value using the given formatter.

impl PartialEq for Levers

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

impl StructuralPartialEq for Levers