Delta Time

Menu Path : Operator > BuiltIn > DeltaTime

The Delta Time Operator outputs the time (in seconds) between the current and previous frame scaled by VisualEffect.playRate. The value this Operator outputs can be no greater than the value set for VFXManager.maxDeltaTime.

In the Visual Effect Graph Asset, if you set Update Mode to Fixed Delta Time, the base value this Operator scales by VisualEffect.playRate is a multiple of VFXManager.fixedTimeStep. The multiple is between 0 and the maximum iteration count, which Unity calculates from VFXManager.maxDeltaTime and VFXManager.fixedTimeStep.

Overall, Unity produces the output value as follows :

deltaTime = max(VisualEffectAsset.fixedDeltaTime ? n * VFXManager.fixedTimeStep : Time.deltaTime, VFXManager.maxDeltaTime) * VisualEffect.playRate;

Where n is a positive integer (including zero).

Operator properties

Output	Type	Description
deltaTime	Float	The visual effect's deltaTime no greater than VFXManager.maxDeltaTime. If the Visual Effect Graph Asset's Update Mode is set to Fixed Delta Time, this value is a multiple of VFXManager.fixedTimeStep.