From c0dff7fafbf703057e387950278ddf5b66ab91ca Mon Sep 17 00:00:00 2001
From: Andreas Sundquist <asundqui@worldlabs.ai>
Date: Mon, 30 Jun 2025 15:39:01 -0700
Subject: [PATCH] Fix Spherical Harmonics not included in SPZ transcoding.
 (#83)

---
 src/ksplat.ts | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/ksplat.ts b/src/ksplat.ts
index 945bd32..33a892c 100644
--- a/src/ksplat.ts
+++ b/src/ksplat.ts
@@ -332,6 +332,19 @@ export function decodeKsplat(
       );
 
       if (sphericalHarmonicsDegree >= 1 && sh1) {
+        for (const [i, key] of sh1Index.entries()) {
+          sh1[i] = getSh(splatOffset, key);
+        }
+        if (sh2) {
+          for (const [i, key] of sh2Index.entries()) {
+            sh2[i] = getSh(splatOffset, key);
+          }
+        }
+        if (sh3) {
+          for (const [i, key] of sh3Index.entries()) {
+            sh3[i] = getSh(splatOffset, key);
+          }
+        }
         shCallback?.(i, sh1, sh2, sh3);
       }
     }