# wdas/brdf

BRDF Explorer

Repository: https://github.com/wdas/brdf
Canonical: https://ross.abutalabs.com/products/brdf
Language: C++
License: NOASSERTION
License Family: other
Last push: 2023-04-21T21:40:19+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5382, "days_push": 1230, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2266, forks 382 (observed 2026-08-28T04:06:32.704936+00:00)

## What it is
Disney BRDF Explorer is a desktop application for developing, loading, and analyzing bidirectional reflectance distribution functions (BRDFs). It plots analytic BRDFs written as GLSL snippets alongside measured material data from the MERL and MIT CSAIL databases, with 3D, polar, and cartesian visualizations.

## Use cases
- analyze and compare BRDF reflectance functions visually
- plot analytic BRDF models written in GLSL
- visualize measured material data from the MERL database
- preview materials on a lit sphere or object with environment map illumination
- develop and tune shading models for physically based rendering

## When to choose
- you are researching or authoring BRDF models for rendering
- you need to compare analytic BRDFs against measured material data
- you want interactive 3D, polar, and cartesian plots of reflectance functions

## When to avoid
- you need a production renderer or material authoring pipeline rather than analysis
- you need a maintained tool with active support
- you want a headless or scriptable BRDF evaluation library

## Facets
- artifact type: application
- maturity: maintenance
- function: graphics, simulation, data-visualization, gui
- domain: graphics, computer-vision, developer-tools, simulation
- platform: cross-platform, cpp
- tags: brdf, rendering, shading, material-analysis, glsl, disney-animation, desktop

## Member repositories
- wdas/brdf (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:32.704936+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 2026-08-30T02:42:23.543856+00:00, confidence not recorded.
  - readme: https://github.com/wdas/brdf (fetched 2026-08-28T04:06:32.704936+00:00, sha e05ac061d42b)
- Data as of 2026-08-30T08:39:29.467469+00:00.