diff --git a/wadsrc/static/language.enu b/wadsrc/static/language.enu
index 3e20e1e03..065d547be 100644
--- a/wadsrc/static/language.enu
+++ b/wadsrc/static/language.enu
@@ -2787,6 +2787,7 @@ GLLIGHTMNU_LIGHTSPRITES				= "Lights affect sprites";
 GLLIGHTMNU_LIGHTPARTICLES			= "Lights affect particles";
 GLLIGHTMNU_LIGHTSHADOWMAP			= "Light shadowmaps";
 GLLIGHTMNU_LIGHTSHADOWMAPQUALITY	= "Shadowmap quality";
+GLLIGHTMNU_LIGHTSHADOWMAPFILTER		= "Shadowmap filter";
 
 // OpenGL Preferences
 GLPREFMNU_TITLE 				= "OPENGL PREFERENCES";
diff --git a/wadsrc/static/menudef.txt b/wadsrc/static/menudef.txt
index d8d3c9a4c..9e3f801cc 100644
--- a/wadsrc/static/menudef.txt
+++ b/wadsrc/static/menudef.txt
@@ -2225,6 +2225,13 @@ OptionValue ShadowMapQuality
 	1024, "1024"
 }
 
+OptionValue ShadowMapFilter
+{
+	0, "$OPTVAL_LINEAR"
+	1, "PCF"
+}
+
+
 OptionMenu "GLTextureGLOptions" protected
 {
 	Title "$GLTEXMNU_TITLE"
@@ -2259,6 +2266,7 @@ OptionMenu "GLLightOptions" protected
 	Option "$GLLIGHTMNU_LIGHTPARTICLES",		gl_light_particles,		"YesNo"
 	Option "$GLLIGHTMNU_LIGHTSHADOWMAP",		gl_light_shadowmap,		"YesNo"
 	Option "$GLLIGHTMNU_LIGHTSHADOWMAPQUALITY", gl_shadowmap_quality,	"ShadowMapQuality"
+	Option "$GLLIGHTMNU_LIGHTSHADOWMAPFILTER", 	gl_shadowmap_filter,	"ShadowMapFilter"
 }
 
 OptionMenu "OpenGLOptions" protected