# Unity-Technologies/VolumetricLighting

Lighting effects implemented for the Adam demo: volumetric fog, area lights and tube lights

Repository: https://github.com/Unity-Technologies/VolumetricLighting
Canonical: https://ross.abutalabs.com/products/volumetriclighting
Language: C#
License: MIT
License Family: permissive
Last push: 2019-12-03T16:36:48+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3592, "days_push": 2465, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1797, forks 254 (observed 2026-08-28T04:05:37.652231+00:00)

## What it is
A Unity library of lighting effects from the Adam demo, providing volumetric fog, area lights, and tube lights implemented with compute shaders. It adds physically-inspired light scattering and soft shadow rendering to Unity scenes.

## Use cases
- add volumetric fog to a Unity scene
- render area lights with soft shadows in Unity
- create tube light effects for cinematic rendering
- simulate light scattering through fog
- achieve cinematic lighting like the Adam demo

## When to choose
- you need volumetric fog or area/tube lights in Unity
- you target DX11/DX12 or Metal with compute shader support
- you want reference implementations of advanced lighting techniques

## When to avoid
- you need a maintained, up-to-date solution for recent Unity versions
- you need physically accurate area light shadows
- your target platform lacks compute shader support

## Facets
- artifact type: library
- maturity: maintenance
- function: graphics, simulation
- domain: graphics
- platform: windows, game-engine, cpp
- tags: unity, volumetric-fog, area-lights, shaders, rendering, compute-shaders, game-development, macos

## Member repositories
- Unity-Technologies/VolumetricLighting (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:37.652231+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:22:40.642853+00:00, confidence not recorded.
  - readme: https://github.com/Unity-Technologies/VolumetricLighting (fetched 2026-08-28T04:05:37.652231+00:00, sha 135697e3f9d1)
- Data as of 2026-08-30T08:39:29.467469+00:00.