From 2cbf4a15df940d92d38003d302e61fda14e1dc51 Mon Sep 17 00:00:00 2001
From: Cosmic Linden <cosmic@lindenlab.com>
Date: Fri, 9 Feb 2024 12:34:02 -0800
Subject: secondlife/viewer#773: Fix RenderTerrainPBREnabled requiring restart
 and respect simulator feature PBRTerrainEnabled

---
 indra/newview/llfloaterregioninfo.cpp | 32 ++++++++++++++++++++++++++++++--
 1 file changed, 30 insertions(+), 2 deletions(-)

(limited to 'indra/newview/llfloaterregioninfo.cpp')

diff --git a/indra/newview/llfloaterregioninfo.cpp b/indra/newview/llfloaterregioninfo.cpp
index 2c743d596e..8b335d57d7 100644
--- a/indra/newview/llfloaterregioninfo.cpp
+++ b/indra/newview/llfloaterregioninfo.cpp
@@ -1441,6 +1441,11 @@ BOOL LLPanelRegionTerrainInfo::postBuild()
 	mAskedTextureHeights = false;
 	mConfirmedTextureHeights = false;
 
+    if (!mRegionChangedSlot.connected())
+    {
+        mRegionChangedSlot = gAgent.addRegionChangedCallback(boost::bind(&LLPanelRegionTerrainInfo::onRegionChanged,this));
+    }
+
     refresh();
 
 	return LLPanelRegionInfo::postBuild();
@@ -1449,8 +1454,7 @@ BOOL LLPanelRegionTerrainInfo::postBuild()
 // virtual
 void LLPanelRegionTerrainInfo::refresh()
 {
-    // For simplicity, require restart
-    static BOOL feature_pbr_terrain_enabled = gSavedSettings.getBOOL("RenderTerrainPBREnabled");
+    static LLCachedControl<bool> feature_pbr_terrain_enabled(gSavedSettings, "RenderTerrainPBREnabled", false);
 
     LLTextBox* texture_text = getChild<LLTextBox>("detail_texture_text");
     if (texture_text) { texture_text->setVisible(!feature_pbr_terrain_enabled); }
@@ -1512,6 +1516,27 @@ void LLPanelRegionTerrainInfo::onSelectMaterialType()
     }
 }
 
+void LLPanelRegionTerrainInfo::onRegionChanged()
+{
+    LLViewerRegion *region = gAgent.getRegion();
+    if (!region) { return; }
+
+    if (region->simulatorFeaturesReceived())
+    {
+        onSimulatorFeaturesReceived(region->getRegionID(), region);
+    }
+    else
+    {
+        // See "RenderTerrainPBREnabled" in LLViewerRegion::setSimulatorFeatures
+        region->setSimulatorFeaturesReceivedCallback(boost::bind(&LLPanelRegionTerrainInfo::onSimulatorFeaturesReceived,this,_1, _2));
+    }
+}
+
+void LLPanelRegionTerrainInfo::onSimulatorFeaturesReceived(const LLUUID& region_id, LLViewerRegion* regionp)
+{
+    refresh();
+}
+
 // virtual
 bool LLPanelRegionTerrainInfo::refreshFromRegion(LLViewerRegion* region)
 {
@@ -1568,6 +1593,9 @@ bool LLPanelRegionTerrainInfo::refreshFromRegion(LLViewerRegion* region)
 		LL_DEBUGS() << "no region set" << LL_ENDL;
 		getChild<LLUICtrl>("region_text")->setValue(LLSD(""));
 	}
+    
+    // Update visibility of terrain swatches, etc
+    refresh();
 
 	getChildView("download_raw_btn")->setEnabled(owner_or_god);
 	getChildView("upload_raw_btn")->setEnabled(owner_or_god);
-- 
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