options for texture filtering and mipmaps

apps/openmw/mwrender/renderingmanager.cpp

@@ -32,7 +32,17 @@ RenderingManager::RenderingManager (OEngine::Render::OgreRenderer& _rend, const
     configureFog(1, ColourValue(1,1,1));
 
     // Set default mipmap level (NB some APIs ignore this)
-    TextureManager::getSingleton().setDefaultNumMipmaps(5);
+    TextureManager::getSingleton().setDefaultNumMipmaps(Settings::Manager::getInt("num mipmaps", "General"));
+
+    // Set default texture filtering options
+    TextureFilterOptions tfo;
+    std::string filter = Settings::Manager::getString("texture filtering", "General");
+    if (filter == "anisotropic") tfo = TFO_ANISOTROPIC;
+    else if (filter == "trilinear") tfo = TFO_TRILINEAR;
+    else /* if (filter == "bilinear") */ tfo = TFO_BILINEAR;
+
+    MaterialManager::getSingleton().setDefaultTextureFiltering(tfo);
+    MaterialManager::getSingleton().setDefaultAnisotropy(Settings::Manager::getInt("anisotropy", "General"));
 
     // Load resources
     ResourceGroupManager::getSingleton().initialiseAllResourceGroups();

files/settings-default.cfg

@@ -2,6 +2,18 @@
 # Camera field of view
 field of view = 55
 
+# Texture filtering mode. valid values:
+# anisotropic
+# bilinear
+# trilinear
+texture filtering = anisotropic
+
+# Has no effect when texture filtering is not anisotropic
+anisotropy = 4
+
+# Number of texture mipmaps to generate
+num mipmaps = 5
+
 [HUD]
 # FPS counter
 # 0: not visible