diff --git a/apps/opencs/model/world/data.cpp b/apps/opencs/model/world/data.cpp
index b9208b44b6..bc630806a1 100644
--- a/apps/opencs/model/world/data.cpp
+++ b/apps/opencs/model/world/data.cpp
@@ -11,6 +11,8 @@
 #include <components/esm/cellref.hpp>
 
 #include <components/resource/scenemanager.hpp>
+#include <components/sceneutil/shadow.hpp>
+#include <components/shader/shadermanager.hpp>
 #include <components/vfs/manager.hpp>
 #include <components/vfs/registerarchives.hpp>
 
@@ -75,6 +77,14 @@ CSMWorld::Data::Data (ToUTF8::FromType encoding, bool fsStrict, const Files::Pat
     mResourcesManager.setVFS(mVFS.get());
     mResourceSystem.reset(new Resource::ResourceSystem(mVFS.get()));
 
+    Shader::ShaderManager::DefineMap defines = mResourceSystem->getSceneManager()->getShaderManager().getGlobalDefines();
+    Shader::ShaderManager::DefineMap shadowDefines = SceneUtil::ShadowManager::getShadowsDisabledDefines();
+    defines["forcePPL"] = "0";
+    defines["clamp"] = "1";
+    for (const auto& define : shadowDefines)
+        defines[define.first] = define.second;
+    mResourceSystem->getSceneManager()->getShaderManager().setGlobalDefines(defines);
+
     mResourceSystem->getSceneManager()->setShaderPath((resDir / "shaders").string());
 
     int index = 0;
diff --git a/components/sceneutil/shadow.hpp b/components/sceneutil/shadow.hpp
index 24deff2531..928de4543a 100644
--- a/components/sceneutil/shadow.hpp
+++ b/components/sceneutil/shadow.hpp
@@ -15,6 +15,8 @@ namespace SceneUtil
     public:
         static void disableShadowsForStateSet(osg::ref_ptr<osg::StateSet> stateSet);
 
+        static Shader::ShaderManager::DefineMap getShadowsDisabledDefines();
+
         ShadowManager(osg::ref_ptr<osg::Group> sceneRoot, osg::ref_ptr<osg::Group> rootNode, unsigned int outdoorShadowCastingMask, unsigned int indoorShadowCastingMask, Shader::ShaderManager &shaderManager);
 
         virtual ~ShadowManager() = default;
@@ -23,8 +25,6 @@ namespace SceneUtil
 
         virtual Shader::ShaderManager::DefineMap getShadowDefines();
 
-        virtual Shader::ShaderManager::DefineMap getShadowsDisabledDefines();
-
         virtual void enableIndoorMode();
 
         virtual void enableOutdoorMode();