Unity URP - Simple Per Object Motion Blur

A simple implementation of a Per-object motion blur effect for Unity's Universal Render Pipeline. Developed as a weekend project, it uses the new Full Screen Pass Renderer Feature and Fullscreen Shader Graph introduced in Unity 2022.2. This is a fullscreen effect that applies to all object using motion vectors in the scene.

Demo

demo.mp4

Instructions

• Import the "URP Simple Per Object Motion Blur" package into your Unity project.
• Add a Full Screen Pass Renderer Feature into your URP renderer.
• In the renderer feature, add a the "PerObjectMotionBlur" material provided by the package. Or use your own material.
• In the requirements, select "Color" and "Motion".

• In the material settings, you can adjust :
  • The number of samples for the motion blur
  • The amplitude of the motion blur
  • The target frame rate / shutter speed

Requirements

• Unity 2022.2 or later
• Universal Render Pipeline 14.0.5 or later

Known issues

• The motion blur effect messes with the scene view in the Unity editor. I recommend to disable the effect while working in the scene view.

Related Links

• http://john-chapman-graphics.blogspot.com/2013/01/per-object-motion-blur.html
• https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@14.0/manual/renderer-features/renderer-feature-full-screen-pass.html
• https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@14.0/manual/post-processing/post-processing-custom-effect-low-code.html