# PSYS_PART_EMISSIVE_MASK

*LSL constant*

```lsl
integer PSYS_PART_EMISSIVE_MASK = 0x100;
```

Particle flag that makes particles full-bright and unaffected by global lighting (sunlight). Otherwise, particles are lit by current global lighting or local point lights.

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_EMISSIVE_MASK/