From 4e19b2ae34a0cd5e19068bedb8612ba4ea89e8c1 Mon Sep 17 00:00:00 2001
From: Rye Mutt <rye@alchemyviewer.org>
Date: Sat, 17 Aug 2024 19:19:18 -0400
Subject: Fix RenderReflectionProbeResolution debug setting not updating during
 runtime

---
 indra/newview/llreflectionmapmanager.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/indra/newview/llreflectionmapmanager.cpp b/indra/newview/llreflectionmapmanager.cpp
index 1efe51c1aa..3526004071 100644
--- a/indra/newview/llreflectionmapmanager.cpp
+++ b/indra/newview/llreflectionmapmanager.cpp
@@ -1371,13 +1371,21 @@ void LLReflectionMapManager::initReflectionMaps()
 {
     U32 count = LL_MAX_REFLECTION_PROBE_COUNT;
 
-    if (mTexture.isNull() || mReflectionProbeCount != count || mReset)
+    static LLCachedControl<U32> ref_probe_res(gSavedSettings, "RenderReflectionProbeResolution", 128U);
+    U32 probe_resolution = nhpo2(llclamp(ref_probe_res(), (U32)64, (U32)512));
+    if (mTexture.isNull() || mReflectionProbeCount != count || mProbeResolution != probe_resolution || mReset)
     {
+        if(mProbeResolution != probe_resolution)
+        {
+            mRenderTarget.release();
+            mMipChain.clear();
+        }
+
         gEXRImage = nullptr;
 
         mReset = false;
         mReflectionProbeCount = count;
-        mProbeResolution = nhpo2(llclamp(gSavedSettings.getU32("RenderReflectionProbeResolution"), (U32)64, (U32)512));
+        mProbeResolution = probe_resolution;
         mMaxProbeLOD = log2f((F32)mProbeResolution) - 1.f; // number of mips - 1
 
         if (mTexture.isNull() ||
-- 
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