FullScreenVolumePass

Volumes support for your own custom full screen post-processing effects in Unity 6 URP 17+.

Same as built-in fullscreen pass renderer feature but with volumes.

Use this package when you want to drive fullscreen materials from the Volume system (including blendable local/global volumes), without writing a custom renderer feature for every single effect.

Features

Like built-in renderer feature, this package provides a single, generic renderer feature that can render any fullscreen material at the specified injection point, with the following volume-driven configuration:

• Supports Before Post Processing and After Post Processing injection points.
• Supports optional source color fetch (copy) for effects that need _BlitTexture.
• Supports URP input requirements (Color, Depth, Normal, Motion).
• Supports optional depth-stencil binding for stencil/depth-aware fullscreen materials.
• Supports priority-based ordering through Volume priority.

Requirements

• Unity 6000.0.0f1 or newer.
• Universal Render Pipeline 17.0.0 or newer.

This rendering feature uses RenderGraph API, so it requires URP 17+ and won't work in older versions.

Installation

Option 1 (Package Manager via Git URL)

1. Open Window > Package Manager.
2. Click +.
3. Select Add package from git URL....
4. Use:

https://github.com/dgul3d/UnityURPFullScreenVolumePass.git?path=/Packages/com.gulievstudio.fullscreenvolumepass

Option 2 (Local package)

1. Download this repository.
2. Copy Packages/com.gulievstudio.fullscreenvolumepass into your project (for example under a local packages folder).
3. Add it as a local package through Package Manager.

Quick Start

1. In your URP Renderer asset, add FullScreenVolumePassRendererFeature.
2. Create a fullscreen-compatible material (for example with Fullscreen Shader Graph target).
3. Add a Global Volume (or local Volume) to your scene.
4. Add override: Post-processing/Custom fullscreen volume pass.
5. Configure:
   • Is Enabled
   • Requirements
   • Fetch Color Buffer
   • Pass Material

Volume Component Fields

• Is Enabled: turns the effect on/off.
• Intensity: value passed to material property _Intensity.
• Injection Point:
  • BeforePostProcessing
  • AfterPostProcessing
• Requirements: requests URP textures the shader may need.
• Fetch Color Buffer: copies active color to _BlitTexture source path.
• Bind Depth Stencil: binds active depth-stencil when drawing fullscreen pass.
• Pass Material: material used for rendering.
• Pass Index: pass index in the selected material.

Notes

• If multiple different volume sources share the same material instance, the package logs an error about material state coupling.
• As with any fullscreen effect, use backbuffer fetch only when necessary for best performance.

Samples

• Scene sample exists under Samples/FullScreenVolumePass.unity.
• You can find fullscreen shader graph examples in Samples/Shaders. SG_Fullscreen_Distortion uses backbuffer fetch, while SG_FullscreenNoiseVignette and SG_FullscreenRadialNoiseVignette are just overlay effects with alpha blending.

Additional Links

• Code: https://github.com/dgul3d/UnityURPFullScreenVolumePass
• Issues: https://github.com/dgul3d/UnityURPFullScreenVolumePass/issues
• Author: https://github.com/dgul3d