diff --git a/lib/x11/ext/glxconstants.js b/lib/x11/ext/glxconstants.js
index 0e1698c..8fc3027 100644
--- a/lib/x11/ext/glxconstants.js
+++ b/lib/x11/ext/glxconstants.js
@@ -9,6 +9,9 @@ module.exports = {
     DEPTH_TEST: 0x0B71,
     NORMALIZE: 0x0BA1,
 
+    BLEND: 0x0BE2,
+    POLYGON_SMOOTH: 0x0B41,
+
     // glShadeModel
     FLAT: 0x1D00,
     SMOOTH: 0x1D01,
@@ -43,6 +46,10 @@ module.exports = {
 
     COMPILE: 0x1300,
 
+    // Hint
+    POLYGON_SMOOTH_HINT: 0x0C53,
+    NICEST: 0x1102,
+
     // glGetString
     RENDERER: 0x1F01,
     VERSION: 0x1F02,
diff --git a/lib/x11/ext/glxrender.js b/lib/x11/ext/glxrender.js
index 8d6b033..e8438f6 100644
--- a/lib/x11/ext/glxrender.js
+++ b/lib/x11/ext/glxrender.js
@@ -52,6 +52,12 @@ module.exports = function(GLX) {
         buffers.push(res);
     };
 
+    function serialize2i(opcode, value1, value2) {
+       var res = commandBuffer(opcode, 12);
+        res.writeUInt32LE(value1, 4);
+        res.writeUInt32LE(value2, 8);
+        buffers.push(res);
+    }
 
     function serialize1i(opcode, value) {
        var res = commandBuffer(opcode, 8);
@@ -127,6 +133,8 @@ module.exports = function(GLX) {
         ShadeModel: function(model) {
             serialize1i(104, model);
         },
-
+        Hint: function(target, mode) {
+            serialize2i(85, target, mode);
+        }
     };
 }