diff --git a/src/lua_infolib.c b/src/lua_infolib.c
index 25241f66f..555bf3196 100644
--- a/src/lua_infolib.c
+++ b/src/lua_infolib.c
@@ -268,20 +268,6 @@ static UINT8 GetPivotFrame(lua_State *L, int idx)
 	return frame;
 }
 
-static int PushCast(lua_State *L, const char *meta)
-{
-	// bypass LUA_PushUserdata
-	void **userdata = lua_newuserdata(L, sizeof(void *));
-
-	*userdata = lua_touserdata(L, 1);
-
-	luaL_getmetatable(L, meta);
-	lua_setmetatable(L, -2);
-
-	// stack is left with the userdata on top, as if getting it had originally succeeded.
-	return 1;
-}
-
 // spriteinfo[]
 static int lib_getSpriteInfo(lua_State *L)
 {
@@ -470,15 +456,23 @@ static int lib_spriteinfolen(lua_State *L)
 // spriteinfo_t
 static int spriteinfo_get(lua_State *L)
 {
+	spriteinfo_t *sprinfo = *((spriteinfo_t **)luaL_checkudata(L, 1, META_SPRITEINFO));
 	const char *field = luaL_checkstring(L, 2);
 
-	luaL_checkudata(L, 1, META_SPRITEINFO);
+	I_Assert(sprinfo != NULL);
 
 	// push spriteframepivot_t userdata
 	if (fastcmp(field, "pivot"))
-		return PushCast(L, META_PIVOTLIST);
-	else if (fastcmp(field, "brightmap"))
-		return PushCast(L, META_SPRITEBRIGHTLIST);
+	{
+		// bypass LUA_PushUserdata
+		void **userdata = lua_newuserdata(L, sizeof(void *));
+		*userdata = sprinfo;
+		luaL_getmetatable(L, META_PIVOTLIST);
+		lua_setmetatable(L, -2);
+
+		// stack is left with the userdata on top, as if getting it had originally succeeded.
+		return 1;
+	}
 	else
 		return luaL_error(L, LUA_QL("spriteinfo_t") " has no field named " LUA_QS, field);
 
@@ -648,29 +642,6 @@ static int framepivot_num(lua_State *L)
 	return 1;
 }
 
-static int brightlist_get(lua_State *L)
-{
-	const spriteinfo_t *sprinfo = *((spriteinfo_t **)luaL_checkudata(L, 1, META_SPRITEBRIGHTLIST));
-	const UINT8 frame = GetPivotFrame(L, 2);
-
-	lua_pushstring(L, sprinfo->bright[frame]);
-
-	return 1;
-}
-
-static int brightlist_set(lua_State *L)
-{
-	spriteinfo_t *sprinfo = *((spriteinfo_t **)luaL_checkudata(L, 1, META_SPRITEBRIGHTLIST));
-
-	const UINT8 frame = GetPivotFrame(L, 2);
-	const char *val = luaL_checkstring(L, 3);
-
-	Z_Free(sprinfo->bright[frame]);
-	sprinfo->bright[frame] = Z_StrDup(val);
-
-	return 0;
-}
-
 ////////////////
 // STATE INFO //
 ////////////////
@@ -2125,17 +2096,6 @@ int LUA_InfoLib(lua_State *L)
 		lua_setfield(L, -2, "__len");
 	lua_pop(L, 1);
 
-	luaL_newmetatable(L, META_SPRITEBRIGHTLIST);
-		lua_pushcfunction(L, brightlist_get);
-		lua_setfield(L, -2, "__index");
-
-		lua_pushcfunction(L, brightlist_set);
-		lua_setfield(L, -2, "__newindex");
-
-		lua_pushcfunction(L, pivotlist_num);
-		lua_setfield(L, -2, "__len");
-	lua_pop(L, 1);
-
 	luaL_newmetatable(L, META_PRECIPPROPS);
 		lua_pushcfunction(L, precipprops_get);
 		lua_setfield(L, -2, "__index");
diff --git a/src/lua_libs.h b/src/lua_libs.h
index 6a28e85fa..0cc818739 100644
--- a/src/lua_libs.h
+++ b/src/lua_libs.h
@@ -28,7 +28,6 @@ extern lua_State *gL;
 #define META_SPRITEINFO "SPRITEINFO_T*"
 #define META_PIVOTLIST "SPRITEFRAMEPIVOT_T[]"
 #define META_FRAMEPIVOT "SPRITEFRAMEPIVOT_T*"
-#define META_SPRITEBRIGHTLIST "SPRITEBRIGHTMAP_T[]"
 #define META_PRECIPPROPS "PRECIPPROPS_T*"
 
 #define META_TAGLIST "TAGLIST"