Universal Forward+ Volumetric Fog (Global)

This repository is copied from Unity HDRP Volumetric Fog.

Note that this feature is working as a global fog volume while HDRP requires local volumes.

This package is available on URP Forward+ from 2022.3.0f1 (2022 LTS) version.

	2022 LTS	2023	Unity 6
URP Compatibility	O	O	O
RenderGraph Implementation	X	X	O

How to Use

1. Add 'FP Volumetric Fog' renderer feature to Renderer data (Make sure to use Forward+)
2. Create 'Volumetric Config' via 'Create/UniversalVolumetric/VolumetricFogConfig'
3. Link the config asset to the renderer feature

NOTE - If you use Unity 6 LTS and the rendering result is not as expected, change Shader Precision Model setting in Project Settings > Player > Other Settings > Shader Settings.

Smoke Volume

While this package assumes a global volume, you can put a local smoke volume to make a ground smoke effect for a specific area. Smoke volume component uses a box collider to determine its area. Due to performance, it supports 4 smoke volumes at maximum.

To add a smoke volume to your scene, create a new gameObject and add 'Smoke Volume' component to the gameObject. You might need to create your own noise texture to use, but I added a default noise texture which can be found at 'Runtime/Textures/' directory.

Limitations

1. XR not supported

2. Additional Directional & Local(point & spot) lights are only available in Forward+

   (In other words, only MainLight is working for Forward)

3. DiffuseGI does not contribute to lighting

4. Noise texture is not supported

5. The number of LocalSmokeVolume is 4 at maximum.