VfxDriverContainer

Class Documentation

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The material drivers of a VfxMaterialRenderComponent (its Drivers): shader parameter values that the driver graph computes. There are two kinds:

• materialDrivers: one value per emitter, set as a named material parameter.
• DynamicParticleParameter: values per particle, written into a per-particle buffer that the shader reads.

When the system is prepared, the render component runs the driver setup over both maps: it records which components each driver defines, assigns the random slots and registers the logic drivers.

Notes

• No shipped object uses it.

Properties

0x3c60f9ee

Map<U8, IVfxMaterialDriver> = {}

Removed in 16.1

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DynamicParticleParameter

Map<U8, VfxDynamicParticleParameterDefinition> = {}

16.1

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Per-particle shader values, each a VfxDynamicParticleParameterDefinition under a U8 key. The key is the index of the value in the particle's record.

On every draw the client also sets the shader parameter DYNAMIC_PARTICLE_ENABLE_MASK: four bits per key, one for each component that the key's drivers define. Bits 0-3 belong to key 0, bits 4-7 to key 1, and so on.

Notes

• The per-particle record that reaches the shader holds the particle position and the values of keys 0 and 1. A key of 2 or more is written past the particle's record, into the record of the next particle, and the last particle writes past the end of the buffer.
• The client keeps a per-particle copy of the value only for keys 0-3.

materialDrivers

Map<String, IVfxVector4Driver> = {}

Type history (4 revisions)

• 15.22 - 15.24 Map<String, IVfxMaterialDriver>
• 16.1 - 16.1 Map<String, IVfxVector4Driver>
• 15.24 - 15.24 Map<String, IVfxMaterialDriver>
• since 16.1 Map<String, IVfxVector4Driver>

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Four-component drivers, each under the name of a material parameter. On every draw of the emitter, the client sets each value as the material parameter whose name is the key.

Referenced by 1 class · 1 property

• VfxMaterialRenderComponent Drivers Embed<VfxDriverContainer>

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DynamicParticleParameter

materialDrivers