From 5acc5e46cf4b5c3382babd6a3b93b87f54d79b0a Mon Sep 17 00:00:00 2001
From: Matt Pharr <matt@pharr.org>
Date: Thu, 28 Dec 2023 14:50:48 -0800
Subject: [PATCH] Fix fragment name for erratum (via Jeff Mahovsky)

---
 src/pbrt/util/sampling.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pbrt/util/sampling.cpp b/src/pbrt/util/sampling.cpp
index 4b8683697..78d71d42a 100644
--- a/src/pbrt/util/sampling.cpp
+++ b/src/pbrt/util/sampling.cpp
@@ -73,7 +73,7 @@ pstd::array<Float, 3> SampleSphericalTriangle(const pstd::array<Point3f, 3> &v,
     CHECK(!IsNaN(cosBp));
     cosBp = Clamp(cosBp, -1, 1);
 
-    // Sample $c'$ along the arc between $b'$ and $a$
+    // Sample $c'$ along the arc between $a$ and $c$
     Float sinBp = SafeSqrt(1 - Sqr(cosBp));
     Vector3f cp = cosBp * a + sinBp * Normalize(GramSchmidt(c, a));