VfxDynamicParticleParameterDefinition

Class Documentation

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One per-particle shader value, an entry of DynamicParticleParameter on VfxDriverContainer. The entry's key selects where the value goes in the particle's record, which the material's shader reads.

• At spawn, the client evaluates InitialParameters once for each new particle and writes the result into the particle's record.
• In each update, the client evaluates KeyedParameters for each particle. If InitialParameters is also set, the result is multiplied, component by component, by the particle's spawn value. The product replaces the value in the record.

So with both values set, the shader reads InitialParameters (at spawn) times KeyedParameters (now). With only one of them set, it reads that one.

Notes

• The client stores the spawn value of a particle only when both values are set. With only InitialParameters set, the record keeps the spawn value.
• No shipped object uses it.

Properties

EnableNode

U8 = 0

Removed in 16.9

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InitialParameters

Embed<VfxVector4DynamicProperty> = { "Vector4": {} }

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The value at spawn, a VfxVector4DynamicProperty evaluated once per particle.

KeyedParameters

Embed<VfxVector4DynamicProperty> = { "Vector4": {} }

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The value over the particle's life, a VfxVector4DynamicProperty evaluated for each particle in every update.

Referenced by 1 class · 1 property

• VfxDriverContainer DynamicParticleParameter Map<U8, VfxDynamicParticleParameterDefinition>

EnableNode

InitialParameters

KeyedParameters