# Sandbox.Surface.ImpactEffectData

- Kind: struct
- Assembly: `Sandbox.Engine`
- Modifiers: sealed
> **Obsolete.**


## Properties

- [`Bullet`](/api/Sandbox.Surface.ImpactEffectData/Bullet): Spawn one of these particles when hit by a bullet.
- [`BulletDecal`](/api/Sandbox.Surface.ImpactEffectData/BulletDecal): Use one of these as the bullet impact decal.
- [`HardDecal`](/api/Sandbox.Surface.ImpactEffectData/HardDecal): Use one of these as a physics impact decal.
- [`HardParticles`](/api/Sandbox.Surface.ImpactEffectData/HardParticles): Spawn one of these particles on impact.
- [`Regular`](/api/Sandbox.Surface.ImpactEffectData/Regular): Spawn one of these particles on impact.
- [`SoftDecal`](/api/Sandbox.Surface.ImpactEffectData/SoftDecal): Use one of these as a physics impact decal.
- [`SoftParticles`](/api/Sandbox.Surface.ImpactEffectData/SoftParticles): Spawn one of these particles on impact.