1 files changed, 31 insertions, 0 deletions

diff --git a/linden/indra/newview/llprefsadvanced.cpp b/linden/indra/newview/llprefsadvanced.cpp
index 1ecc0ec..88f066c 100644
--- a/linden/indra/newview/llprefsadvanced.cpp
+++ b/linden/indra/newview/llprefsadvanced.cpp
@@ -59,6 +59,37 @@ void LLPrefsAdvanced::apply()
         gSavedSettings.setBOOL("DisableLoginLogoutScreens", childGetValue("disable_log_screen_check"));
         gSavedSettings.setBOOL("DisableTeleportScreens", childGetValue("disable_tp_screen_check"));
         gSavedSettings.setBOOL("ClothingLayerProtection", childGetValue("client_name_tag_check"));
+
+        // This is bad bad BAD UI from Emerald, I know. 
+        // If anyone wants to do this better, please do -- MC
+        if ( childGetValue("shadows_check").asBoolean() )
+        {
+                if ( (gSavedSettings.getU32("RenderQualityPerformance") < 3) // Make sure we have everything enabled
+                        || !gSavedSettings.getBOOL("WindLightUseAtmosShaders")
+                        || !gSavedSettings.getBOOL("VertexShaderEnable") ) 
+                {
+                        childSetValue("shadows_check", FALSE);
+                        LLNotifications::instance().add("NoShadows");
+                        llwarns << "Attempting to enable shadow rendering while graphics settings less than Ultra or shaders are missing!" << llendl;
+                }
+                else if ( (gSavedSettings.getBOOL("WindLightUseAtmosShaders") // If we do, toggle shadows in the correct order
+                                && gSavedSettings.getBOOL("VertexShaderEnable")) )
+                {
+                        gSavedSettings.setBOOL("RenderUseFBO", childGetValue("shadows_check").asBoolean());
+                        gSavedSettings.setBOOL("RenderDeferred", childGetValue("shadows_check").asBoolean());
+                        llinfos << "Shadow rendering enabled" << llendl;
+                }
+        }
+        else if (!childGetValue("shadows_check").asBoolean()) 
+        {
+                if (gSavedSettings.getBOOL("RenderDeferred"))
+                {
+                        gSavedSettings.setBOOL("RenderDeferred", childGetValue("shadows_check").asBoolean());
+                        gSavedSettings.setBOOL("RenderUseFBO", childGetValue("shadows_check").asBoolean());
+                        llinfos << "Shadow rendering disabled" << llendl;
+                }
+        }
+        gSavedSettings.setBOOL("ShadowsEnabled", childGetValue("shadows_check").asBoolean());
 }
 
 void LLPrefsAdvanced::cancel()