From 925e51cb1092b18fa392a555a07dfa8b24dd2acb Mon Sep 17 00:00:00 2001
From: Jan Laupetin <jan@laupetin.net>
Date: Sun, 1 Mar 2026 18:36:27 +0100
Subject: [PATCH] fix: not setting correct flags on technique post processing
 when reusing assets

---
 .../Game/T6/Techset/TechniqueCompilerT6.cpp         | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/ObjCompiling/Game/T6/Techset/TechniqueCompilerT6.cpp b/src/ObjCompiling/Game/T6/Techset/TechniqueCompilerT6.cpp
index 08e285f3..0a243db9 100644
--- a/src/ObjCompiling/Game/T6/Techset/TechniqueCompilerT6.cpp
+++ b/src/ObjCompiling/Game/T6/Techset/TechniqueCompilerT6.cpp
@@ -207,14 +207,19 @@ namespace
         return technique;
     }
 
-    void ApplyTechFlagsFromMaterial(const Material& material)
+    void ApplyTechFlagsFromMaterial(const Material& material, const Zone& zone)
     {
-        if (!material.techniqueSet || material.stateBitsTable)
+        if (!material.techniqueSet || !material.techniqueSet->name || !material.stateBitsTable)
+            return;
+
+        // Find the techniqueset asset from our zone since the material may link to a different one
+        const auto techniqueSetAsset = zone.m_pools.GetAsset<AssetTechniqueSet>(material.techniqueSet->name);
+        if (!techniqueSetAsset)
             return;
 
         for (auto techType = 0u; techType < TECHNIQUE_COUNT; techType++)
         {
-            auto* technique = material.techniqueSet->techniques[techType];
+            auto* technique = techniqueSetAsset->Asset()->techniques[techType];
             const auto stateBitsEntry = material.stateBitsEntry[techType];
 
             if (!technique || stateBitsEntry < 0 || static_cast<decltype(Material::stateBitsCount)>(stateBitsEntry) >= material.stateBitsCount)
@@ -307,7 +312,7 @@ namespace
             const auto materials = m_zone.m_pools.PoolAssets<AssetMaterial>();
             for (auto* materialAsset : materials)
             {
-                ApplyTechFlagsFromMaterial(*materialAsset->Asset());
+                ApplyTechFlagsFromMaterial(*materialAsset->Asset(), m_zone);
             }
         }