diff --git a/reaction/Reaction-ChangeLog b/reaction/Reaction-ChangeLog
index 58f69d97..2ca1f9d5 100644
--- a/reaction/Reaction-ChangeLog
+++ b/reaction/Reaction-ChangeLog
@@ -1,3 +1,4 @@
+- Added UI options for Cascaded Shadow Maps
 - Changed com_zoneMegs to 128 (from 64)
 - Adjust default auto-exposure a bit higher.
 - Added .mtr file support.  .mtr files are just .shader files that are accessed first.
diff --git a/reaction/code/ui/ui_main.c b/reaction/code/ui/ui_main.c
index f780296f..9d2525a0 100644
--- a/reaction/code/ui/ui_main.c
+++ b/reaction/code/ui/ui_main.c
@@ -5686,6 +5686,7 @@ static void UI_Update(const char *name)
 			
 			trap_Cvar_SetValue("ui_filteringMode", 1);
 			trap_Cvar_SetValue("ui_shaderLevel", 1);
+			trap_Cvar_SetValue("ui_shadowMaps", 2);
 			break;
 		case 2:	// crappiest
 			trap_Cvar_SetValue("cg_brassTime", 0);
@@ -5709,6 +5710,7 @@ static void UI_Update(const char *name)
 			
 			trap_Cvar_SetValue("ui_filteringMode", 0);
 			trap_Cvar_SetValue("ui_shaderLevel", 0);
+			trap_Cvar_SetValue("ui_shadowMaps", 0);
 			break;
 		case 3:	// crap
 			trap_Cvar_SetValue("cg_brassTime", 7500);
@@ -5732,6 +5734,7 @@ static void UI_Update(const char *name)
 			
 			trap_Cvar_SetValue("ui_filteringMode", 1);
 			trap_Cvar_SetValue("ui_shaderLevel", 0);
+			trap_Cvar_SetValue("ui_shadowMaps", 1);
 			break;
 		case 4:	// high quality
 			trap_Cvar_SetValue("cg_brassTime", 20000);
@@ -5755,6 +5758,7 @@ static void UI_Update(const char *name)
 			
 			trap_Cvar_SetValue("ui_filteringMode", 4);
 			trap_Cvar_SetValue("ui_shaderLevel", 1);
+			trap_Cvar_SetValue("ui_shadowMaps", 2);
 			break;
 		case 5: // highest quality
 			trap_Cvar_SetValue("cg_brassTime", 20000);
@@ -5778,6 +5782,7 @@ static void UI_Update(const char *name)
 			
 			trap_Cvar_SetValue("ui_filteringMode", 5);
 			trap_Cvar_SetValue("ui_shaderLevel", 1);
+			trap_Cvar_SetValue("ui_shadowMaps", 3);
 			break;
 		}
 	} else if (Q_stricmp(name, "ui_filteringMode") == 0) {
@@ -5826,6 +5831,30 @@ static void UI_Update(const char *name)
 			trap_Cvar_SetValue("r_specularMapping", 1);
 			break;
 		}
+	} else if (Q_stricmp(name, "ui_shadowMaps") == 0) {
+		switch (val) {
+		// cascaded shadow maps
+		case 0:	// disabled
+			trap_Cvar_SetValue("r_sunShadows", 0);
+			trap_Cvar_SetValue("r_shadowFilter", 0);
+			trap_Cvar_SetValue("r_shadowMapSize", 0);
+			break;
+		case 1: // low
+			trap_Cvar_SetValue("r_sunShadows", 1);
+			trap_Cvar_SetValue("r_shadowFilter", 1);
+			trap_Cvar_SetValue("r_shadowMapSize", 512);
+			break;
+		case 2: // medium
+			trap_Cvar_SetValue("r_sunShadows", 1);
+			trap_Cvar_SetValue("r_shadowFilter", 2);
+			trap_Cvar_SetValue("r_shadowMapSize", 1024);
+			break;
+		case 3: // high
+			trap_Cvar_SetValue("r_sunShadows", 1);
+			trap_Cvar_SetValue("r_shadowFilter", 2);
+			trap_Cvar_SetValue("r_shadowMapSize", 2048);
+			break;
+		}
 	} else if (Q_stricmp(name, "ui_mousePitch") == 0) {
 		if (val == 0) {
 			trap_Cvar_SetValue("m_pitch", 0.022f);
diff --git a/reaction/uifiles/system.menu b/reaction/uifiles/system.menu
index dcf4805b..e57d7f17 100644
--- a/reaction/uifiles/system.menu
+++ b/reaction/uifiles/system.menu
@@ -276,7 +276,23 @@ Group # 1 - Graphics
 		action { uiScript glCustom ; uiScript update "ui_shaderLevel" }
 		ASSIGN_HINT("hint_shader")
     END_OPTION
-    ADD_HINT("hint_shader", "Use per-pixel lighting to improve render quality", "group1")
+    ADD_HINT("hint_shader", "Enable normal mapping and specular reflectivity", "group1")
+
+
+    // Cascaded Shadow Maps //
+
+	BEGIN_OPTION("Cascaded Shadow Maps", "ui_shadowMaps", ITEM_TYPE_MULTI, 7, 1)
+		cvarFloatList {
+			"Off"					0
+			"Low"					1
+			"Medium"				2
+			"High"					3
+		}
+		OPTION_BELOW("gr1_ctrl6")
+		action { uiScript glCustom ; uiScript update "ui_shadowMaps" }
+		ASSIGN_HINT("hint_csm")
+    END_OPTION
+    ADD_HINT("hint_csm", "Enable sunlight and cascaded shadow maps", "group1")
 
 
 	// Lightmap/vertex //
@@ -294,13 +310,13 @@ Group # 1 - Graphics
 
 	// Geometric detail //
 
-	BEGIN_OPTION("Geometric Detail", "r_lodbias", ITEM_TYPE_MULTI, 7, 1)
+	BEGIN_OPTION("Geometric Detail", "r_lodbias", ITEM_TYPE_MULTI, 8, 1)
 		cvarFloatList {
-			"High"		0
-			"Medium"	1
 			"Low"		2
+			"Medium"	1
+			"High"		0
 		}
-		OPTION_BELOW("gr1_ctrl6")
+		OPTION_BELOW("gr1_ctrl7")
 		action { uiScript glCustom ; uiScript update "r_lodbias" }
 		ASSIGN_HINT("hint_geodetail")
 	END_OPTION
@@ -309,14 +325,14 @@ Group # 1 - Graphics
 
 	// Texture detail //
 
-	BEGIN_OPTION("Texture Detail", "r_picmip", ITEM_TYPE_MULTI, 8, 1)
+	BEGIN_OPTION("Texture Detail", "r_picmip", ITEM_TYPE_MULTI, 9, 1)
 		cvarFloatList {
 			"Very Low"	3
 			"Low"		2
 			"Medium"	1
 			"High"		0
 		}
-		OPTION_BELOW("gr1_ctrl7")
+		OPTION_BELOW("gr1_ctrl8")
 		action { uiScript glCustom ; }
 		ASSIGN_HINT("hint_texdetail")
 	END_OPTION
@@ -340,8 +356,8 @@ Group # 1 - Graphics
 
 	// Compressed textures //
 
-	BEGIN_OPTION("Compress Textures", "r_ext_compressed_textures", ITEM_TYPE_YESNO, 9, 1)
-		OPTION_BELOW("gr1_ctrl8")
+	BEGIN_OPTION("Compress Textures", "r_ext_compressed_textures", ITEM_TYPE_YESNO, 10, 1)
+		OPTION_BELOW("gr1_ctrl9")
 		action { uiScript glCustom ; }
 		ASSIGN_HINT("hint_compress")
 	END_OPTION
@@ -353,7 +369,7 @@ Group # 1 - Graphics
 	itemdef {
 	name "btn_apply,fade_alpha,allgroups,group1"
 	style WINDOW_STYLE_EMPTY
-	alignrect "gr1_ctrl9" ITEM_ALIGN_RIGHT 0 24 80 VSIZE
+	alignrect "gr1_ctrl10" ITEM_ALIGN_RIGHT 0 24 80 VSIZE
 	type ITEM_TYPE_BUTTON
 	text "^_A^_pply >"
 	shortcutKey "A"