Class ColorGradientReducer

Computes the per-stop "muted" set for a gradient given a "Reduction" slider value. Non-destructive: the underlying stop list is preserved; only the IsMuted flag is written. Setting the slider back to a lower value un-mutes the stops.

Inheritance
object
ColorGradientReducer
Inherited Members
Namespace: Scylla.Core.Editor
Assembly: ScyllaCore.Editor.dll
Syntax
public static class ColorGradientReducer
Remarks

Algorithm. Greedy "walk and keep" with an Oklab delta-E threshold scaled by the slider: 

threshold = reduction * MAX_DELTA_E
keep[0] = true; keep[N-1] = true
lastKept = stops[0]
for i in 1..N-2:
    if OklabDeltaE(stops[i].Color, lastKept.Color) < threshold:
        mute stops[i]
    else:
        keep stops[i]; lastKept = stops[i]

The first and last stops are always kept so the gradient extents never shift. Alpha stops are not affected.

Lives in Scylla.Core.Editor (not Chroma) so any color-asset consumer - Core inspectors, Chroma editor panels, or future tooling - can reuse the same logic without taking a Chroma dependency.

Fields

MAX_DELTA_E

Maximum Oklab delta-E threshold reached when the slider sits at 1.0. 0.4 lands around the "Strong" perceptual rating, giving the slider useful range without collapsing visually distinct stops at low values.

Declaration
public const float MAX_DELTA_E = 0.4
Field Value
Type Description
float

Methods

ApplyReduction(SerializedProperty, float)

Walks the serialized stops array and writes each stop's IsMuted field according to the reduction algorithm. Caller is responsible for opening / applying the UnityEditor.SerializedObject.

Declaration
public static void ApplyReduction(SerializedProperty stopsProp, float reduction)
Parameters
Type Name Description
SerializedProperty stopsProp

Serialized array property for _data.Stops.
float reduction

Slider value, clamped to [0, 1].