From 1d05bb0f134a8ef380a7f3ef2eecb09b03502b40 Mon Sep 17 00:00:00 2001
From: Kelsi <kelsihates2fa@gmail.com>
Date: Wed, 6 May 2026 03:55:14 -0700
Subject: [PATCH] fix(terrain): main game also propagates MODF scale to WMO
 instances

Mirrors the editor's WMO scale fix. WMOReady gains a scale field that
is computed from the loaded MODF placement.scale (u16 / 1024) and
forwarded to wmoRenderer->createInstance(). Without this the main
game ignored MODF scale even on WotLK ADTs that use it.
---
 include/rendering/terrain_manager.hpp | 1 +
 src/rendering/terrain_manager.cpp     | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/rendering/terrain_manager.hpp b/include/rendering/terrain_manager.hpp
index 1a182796..588694e1 100644
--- a/include/rendering/terrain_manager.hpp
+++ b/include/rendering/terrain_manager.hpp
@@ -99,6 +99,7 @@ struct PendingTile {
         pipeline::WMOModel model;
         glm::vec3 position;
         glm::vec3 rotation;
+        float scale = 1.0f;
     };
     std::vector<WMOReady> wmoModels;
 
diff --git a/src/rendering/terrain_manager.cpp b/src/rendering/terrain_manager.cpp
index 4287fa1d..5ea6b940 100644
--- a/src/rendering/terrain_manager.cpp
+++ b/src/rendering/terrain_manager.cpp
@@ -860,6 +860,8 @@ std::shared_ptr<PendingTile> TerrainManager::prepareTile(int x, int y) {
                 ready.model = std::move(wmoModel);
                 ready.position = pos;
                 ready.rotation = rot;
+                ready.scale = placement.scale > 0
+                    ? static_cast<float>(placement.scale) / 1024.0f : 1.0f;
                 pending->wmoModels.push_back(std::move(ready));
             }
         }
@@ -1103,7 +1105,8 @@ bool TerrainManager::advanceFinalization(FinalizingTile& ft) {
                 }
                 // Create the instance on first visit (liquidGroupIndex == 0)
                 if (ft.wmoLiquidGroupIndex == 0) {
-                    uint32_t wmoInstId = wmoRenderer->createInstance(wmoReady.modelId, wmoReady.position, wmoReady.rotation);
+                    uint32_t wmoInstId = wmoRenderer->createInstance(
+                        wmoReady.modelId, wmoReady.position, wmoReady.rotation, wmoReady.scale);
                     if (!wmoInstId) {
                         ft.wmoInstanceIndex++;
                         continue;