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IntegratedValueFloat

Value struct

Inheritance 1 ancestor

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An animated value that holds a rate. It is a ValueFloat whose curve the client replaces, when the definition loads, by the curve's running integral. The holder samples it on the particle's age fraction, so the result at any age is the amount accumulated since birth. This page describes integration for all three forms (IntegratedValueVector2, IntegratedValueVector3).

Integration

When the definition loads, the result depends on dynamics:

dynamics Result at t
Not set constantValue. Nothing is integrated.
A VfxAnimated*VariableData curve with two or more keys F(t), the integral of the curve from its first key to t. The client stores F as a table of 64 samples over 0..1 and reads it with t clamped to 0..1.
A VfxAnimated*VariableData curve with one key or none The plain curve value. Nothing is integrated.
A VfxAnimated* curve The plain curve value. The client logs an error once per process and does not integrate the curve.

The holder turns the result into its own units, for example rotation0 scales it by the particle's lifetime. Each property on VfxEmitterDefinitionData states its scaling.

Constant rates. A plain value is applied as one fixed amount for the whole life, so nothing moves. A constant rate needs a curve with two keys that have the same value, for example times [0, 1] and values [v, v]. Its integral is v * t.

Referenced by 3 classes · 3 properties