# PSYS_SRC_PATTERN

*LSL constant*

```lsl
integer PSYS_SRC_PATTERN = 9;
```

Integer parameter specifying the generation pattern (PSYS_SRC_PATTERN_*) used to emit particles.

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

:::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_SRC_PATTERN/