Over 11,000 five-star assets

Rated by 85,000+ customers

Supported by 100,000+ forum members

Every asset moderated by Unity

Home
Tools
Particles & Effects
1/7
A modular siren system with customizable lights, beacons, input control, and performance-friendly shaders for immersive emergency lighting.
Render pipeline compatibility
The Built-in Render Pipeline is Unity’s default render pipeline. It is a general-purpose render pipeline that has limited options for customization. The Universal Render Pipeline (URP) is a Scriptable Render Pipeline that is quick and easy to customize, and lets you create optimized graphics across a wide range of platforms. The High Definition Render Pipeline (HDRP) is a Scriptable Render Pipeline that lets you create cutting-edge, high-fidelity graphics on high-end platforms.
Unity VersionBuilt-inURPHDRP
2022.3.57f1
Compatible
Compatible
Compatible
Additional compatibility information

URP and HDRP will require using the Material Converter to convert the Siren's base model materials, other than that it will work.

Description

Dynamic Sirens & Emergency Lights is a powerful and modular siren system designed to bring realistic emergency lighting to your Unity projects. Whether you need fully customizable sirens or performance-optimized shader effects, this asset provides all the tools to create dynamic police, emergency, or industrial sirens with ease.


Modular & Customizable Sirens

  • Works with both single-model sirens and modular sirens where you can mix and match different siren parts and light modules.
  • Toggle individual front lights, side lights, and the siren itself for complete control over how your sirens behave.
  • Supports two siren variants:Code-Based Sirens – Full customization over light behavior and patterns.
    Shader-Based Sirens – Optimized for performance with Off, Steady, Strobe, and Two-Way Strobe modes.

Dynamic Light Patterns

Customize how your lights behave with multiple preset styles:

  • All – All lights flash together.
  • Sides – Alternates effects between left and right sections.
  • Sequential – Lights activate one by one in sequence.
  • Sequential Fill – Sequential activation but keeps lights on until all are illuminated before resetting.

Fine-tune light behavior with:

  • Steps, Step Duration, and Step Cooldown – Define how many flashes occur, how fast they happen, and cooldown time before repeating.
  • Custom Color Selection – Set up a list of colors to iterate through.
  • Per-Light Color Switching – Each light cycle selects the next color in the list.
  • Random Color Selection – Randomizes colors instead of following a sequence.
  • Reverse Mode – Flips the flow direction for Sequential and Sequential Fill effects.

Realistic Beacons

  • Fully customizable rotating beacon lights.
  • Adjust color, rotation speed, and glass transparency for authentic lighting effects.

Interactive & Real-Time Features

  • SirenMic – Uses the device’s microphone to simulate a radio-like siren effect, perfect for voice commands.
  • Input Support – Toggle sirens using keyboard controls for interactive gameplay.
  • SyncLights – Ensures nearby sirens synchronize their effects to create a cohesive and epilepsy-safe lighting display.

Siren Audio

  • Play a siren when holding a button or on toggle, easily add or change the siren clips.
  • 7 different audio clips are included to get you started.

Optimized Performance & Seamless Integration

  • Code-Based Sirens for full control over effects.
  • Shader-Based Sirens for high performance with minimal CPU/GPU usage.
  • Compatible with any Unity project – easily integrates into your existing systems.

Dynamic Sirens & Emergency Lights is the perfect solution for police cars, fire trucks, ambulances, industrial warning lights, and more. With modular customization, real-time interaction, and advanced synchronization, this asset will bring your emergency scenes to life with cinematic lighting and siren effects.


Dependencies

The shaders sirens require Shader Graph


Note

The vehicle and city are for showcase purposes only and are not included in the package. The sirens model are included.


🚨 Get Dynamic Sirens & Emergency Lights today and take your Unity project to the next level! 🚨

Technical details

Unity Compatibility

  • Works with Built-in Render Pipeline (BRP)
  • URP & HDRP require minor shader adjustments

Contents

  • Scripts: C# source code for customizable sirens, input control, and synchronization
  • Shaders: Optimized siren shader with Off, Steady, Strobe, and Two-Way Strobe modes
  • Prefabs: Modular sirens, standalone sirens, and beacons
  • Materials: Customizable glass transparency and emissive lighting
  • Audio: Microphone-based siren playback + Siren playback with 7 audio files

Features

  • Multiple siren styles: All, Sides, Sequential, and Sequential Fill
  • Step-based timing with adjustable duration and cooldown
  • Color customization with per-light switching and randomization
  • Siren synchronization for epilepsy safety (can be switched off)

Performance

  • Code-Based Sirens: Fully customizable, uses CPU
  • Shader-Based Sirens: High performance, GPU-driven

Dynamic Sirens & Emergency Lights

(not enough ratings)
6 users have favourite this asset
(6)
$24.99
Seat
1
Updated price and taxes/VAT calculated at checkout
26 views in the past week
Refund policy
This asset is covered by the Unity Asset Store Refund Policy. Please see section 2.9.3 of the EULA for details.
Secure checkout:
Supported payment methods: Visa, Mastercard, Maestro, Paypal, Amex
Quality assets
Over 11,000 five-star assets
Trusted
Rated by 85,000+ customers
Community support
Supported by 100,000+ forum members
Unity logo
Language
Feedback
Partners Program
Partners
USD
EUR
Copyright © 2025 Unity Technologies
All prices are exclusive of tax
USD
EUR
$24.99