<p>Section 6 of <a href="https://www.cs.cornell.edu/~srm/publications/EGSR07-btdf.html" rel="nofollow noreferrer">Microfacet Models for Refraction through Rough Surfaces</a> has a good description of how they did it to validate their own model. That may not be everything needed to build a full database (eg. more automation) but it's an interesting read.</p>

CC BY-SA 3.0
2017-05-30T15:52:40.287Z
2017-05-30T15:52:40.287Z
Olivier
<p>How is measured BRDF data recorded? Like the <a href="https://www.merl.com/brdf/" rel="noreferrer">MERL BRDF Database</a>.</p>

<p>What kind of equipment is used and what are the key values that need to be recorded?</p>

<p>I know one place this data was used was in the <a href="https://disney-animation.s3.amazonaws.com/library/s2012_pbs_disney_brdf_notes_v2.pdf" rel="noreferrer">Disney PBR paper</a>.</p>

<raytracing><pathtracing><brdf><pbr>
How is measured BRDF data recorded?
Arjan Singh
# How is measured BRDF data recorded?

(Asked by: username_0 on 2017-05-30)

How is measured BRDF data recorded? Like the [MERL BRDF Database](https://www.merl.com/brdf/).

What kind of equipment is used and what are the key values that need to be recorded?

I know one place this data was used was in the [Disney PBR paper](https://disney-animation.s3.amazonaws.com/library/s2012_pbs_disney_brdf_notes_v2.pdf).

**Tags:** raytracing, pathtracing, brdf, pbr


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## 1 answers

### Answer by username_1 on 2017-05-30. Score: 2

Section 6 of [Microfacet Models for Refraction through Rough Surfaces](https://www.cs.cornell.edu/~srm/publications/EGSR07-btdf.html) has a good description of how they did it to validate their own model. That may not be everything needed to build a full database (eg. more automation) but it's an interesting read.


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