# PSYS_PART_FOLLOW_SRC_MASK

*LSL constant*

```lsl
integer PSYS_PART_FOLLOW_SRC_MASK = 0x10;
```

Particle flag causing particle positions to remain relative to the position and movement of the emitter. Enabling this flag disables the PSYS_SRC_BURST_RADIUS rule.

Constant groups: [ParticleFlag](/constants/groups/ParticleFlag/)

:::note[Documentation]
This entry is documented in the LSL definitions. No matching wiki article is present in this local collection. Its inclusion here does not establish availability on every simulator.
:::

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From lsl.dev: https://lsl.dev/constants/PSYS_PART_FOLLOW_SRC_MASK/