Scaled Animation Curve
ScaledAnimationCurve is a utility class that pairs a standard Unity AnimationCurve with a scale factor. This allows the designer to create curves that represent relative influence (e.g., drag, damping, stiffness) while retaining precise control over their magnitude via scaling.
This type is commonly used in simulation parameters within the Verlet Physics Transform system to modulate forces and responses over a normalised input space (e.g., 0–1 weight).
In Unity, AnimationCurve is a powerful way to represent changes over time or across a value range. However, when using these curves as part of physical or procedural systems, it’s often useful to apply a consistent multiplier across all outputs — for tuning or balancing purposes.
ScaledAnimationCurve provides this ability and integrates cleanly with the Unity Inspector through a custom drawer.
Fields
Scale
public float scaleA multiplier applied to the evaluated result of the curve.
Curve
public AnimationCurve curveThe Unity animation curve used for interpolation.
Methods
Evaluate
Evaluate(float weight)
Evaluate(float weight)Returns the value of the curve at weight, scaled by scale.
Linear
Linear(...)
Linear(...)Creates a linear ScaledAnimationCurve between two points.
EaseInOut
EaseInOut(...)
EaseInOut(...)Creates an ease-in-out ScaledAnimationCurve between two points.
Inspector Support
A custom property drawer is provided for the Unity Editor, allowing the scale and curve to be edited side-by-side in a compact form.
This makes it easy to tune both the curve shape and the magnitude directly in the inspector without needing to create additional tooling.
Use Case Example
Used in VerletTransformTreeSettings to modulate behaviour of a physics chain:
This configures drag to increase from 2 to 3.5 over the 0–1 weight range, scaled down globally by 0.01.
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