Fast Blur – High Performance Blur Post Processing Effect for URP v1.1 (28 Jul 2025)

Fast Blur is a performant, high-quality fullscreen blur effect built for the Universal Render Pipeline (URP) in Unity 6. Designed as a post-processing override, it integrates seamlessly with Unity’s Volume System and delivers smooth, adjustable blur effects – perfect for UI backgrounds, cutscenes, and in-game VFX.

Key Features:

• Performance-Conscious Design: Delivers a substantial performance improvement over traditional blur techniques like box or Gaussian blur, while still providing high visual fidelity.
• Iterative Blur Algorithm: Combines multiple downsampling and upsampling passes with smart interpolation to deliver high-quality results with fewer samples and lower performance impact.
• Volume-Based Control: Fully compatible with Unity’s volume system. Adjust blur intensity smoothly at runtime using post-processing volumes.
• Renderer Feature Integration: Easy setup as a URP Renderer Feature – just add it to your Renderer Asset and configure your volumes.
• Flexible Applications: Ideal for blurring UI backgrounds, creating atmospheric effects, or enhancing transitions with minimal setup.