Oscillate Angle Tool (Fusion)

Overview & Purpose

The Oscillate Angle tool from the Anim Toys pack enables creating sophisticated rotational animations in Fusion. It simplifies adding oscillating or damped rotational movement, offering a procedural alternative to manual keyframing.

The controls are consistent with other Oscillate tools, with specific parameters for Angle Offset (the base rotation) and Pivot (the center of rotation).

Parameters

The Oscillate Angle tool features the following control groups:

Basic Controls

Parameter	Description	Default
Amplitude	Determines the extent of the angular oscillation. The input value is a factor that is multiplied by 360 degrees by the tool to determine the rotational range. For example, an Amplitude of 0.5 with a Sine wave will result in an oscillation of ±180 degrees around the `Angle Offset`.	0.5
Frequency (cycles/sec)	Controls how many times the rotational oscillation pattern repeats per second. Frame rate dependent.	1.0
Wave Type	Selects the mathematical wave function for the angle animation (Sine, Triangle, Bounce, Bounce - Inverted, Sawtooth, Sawtooth - Inverted, Square).	Sine

Damping Controls

Parameter	Description	Default
Amp/Damp Frames	The number of frames for the damping or amplification effect on the rotational amplitude. Positive values decrease amplitude, negative values increase it. 0 means no damping.	0
Damping Type	Defines the curve of the damping effect (Linear, Quadratic, Exponential, Logarithmic).	Quadratic

Spatial Controls

Parameter	Description	Default
Angle Offset	Sets the base angle (in degrees) around which the oscillation occurs.	0.0
Pivot (X, Y)	The standard Fusion Transform pivot point, defining the center of rotation. Uses normalized coordinates (0.5, 0.5 is the image center).	X: 0.5, Y: 0.5

Timing Controls

Parameter	Description	Default
Start Frame	Delays the start of the angular oscillation and any associated damping.	0
Phase Shift (degrees)	Shifts the starting point of the rotational oscillation wave (0-360 degrees).	0.0

Common Controls

Standard Fusion Transform node common controls are also available under the Common tab.

Usage Guide

Add the Oscillate Angle macro to your Fusion composition and connect your image.
In the Inspector, adjust parameters:
- Set the Pivot point.
- Define the Angle Offset.
- Use Amplitude to control the range of angular movement.
- Choose a Wave Type.
- Adjust Frequency for speed.
- Apply Amp/Damp Frames and Damping Type for dynamic amplitude changes.
- Use StartFrame and Phase Shift for timing.

Examples & Tips

Wobbling Sign: Use a Sine wave with a small Amplitude and adjust the Pivot.
Floppy Object: Combine a Bounce wave with an Angle Offset, a Phase Shift, and Amp/Damp Frames. Adjust the Pivot to the hinge point.
Amplitude Interpretation: An Amplitude of 1.0 with a Sine wave results in a peak-to-peak rotation of 360 degrees around the Angle Offset.

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