diff --git a/lib/x11/ext/glxrender.js b/lib/x11/ext/glxrender.js
index 8d6b033..ba75944 100644
--- a/lib/x11/ext/glxrender.js
+++ b/lib/x11/ext/glxrender.js
@@ -1,6 +1,8 @@
 // see http://cgit.freedesktop.org/mesa/mesa/tree/src/mapi/glapi/gen/gl_API.xml
 
-module.exports = function(GLX) {
+var constants = require('./glxconstants');
+
+module.exports = function(GLX, ctx) {
     buffers = [];
 
     function commandBuffer(opcode, len) {
@@ -52,15 +54,40 @@ module.exports = function(GLX) {
         buffers.push(res);
     };
 
-
     function serialize1i(opcode, value) {
        var res = commandBuffer(opcode, 8);
         res.writeUInt32LE(value, 4);
         buffers.push(res);
     }
 
-    return {
-        render: function(ctx) {
+    function serialize1f(opcode, value) {
+       var res = commandBuffer(opcode, 8);
+        res.writeFloatLE(value, 4);
+        buffers.push(res);
+    }
+
+    function serialize2i(opcode, i1, i2) {
+       var res = commandBuffer(opcode, 12);
+        res.writeUInt32LE(i1, 4);
+        res.writeUInt32LE(i2, 8);
+        buffers.push(res);
+    }
+
+    function serialize2i4f(opcode, i1, i2, f1, f2, f3, f4) {
+       var res = commandBuffer(opcode, 28);
+        res.writeUInt32LE(i1, 4);
+        res.writeUInt32LE(i2, 8);
+        res.writeFloatLE(f1, 12);
+        res.writeFloatLE(f2, 16);
+        res.writeFloatLE(f3, 20);
+        res.writeFloatLE(f4, 24);
+        buffers.push(res);
+    }
+
+    var renderContext =  {
+        render: function(ctxLocal) {
+            if (!ctxLocal) // ctxLocalOverrides ctx passed during creation of renderContext
+                ctxLocal = ctx;
             GLX.Render(ctx, buffers);
             buffers = [];
         },
@@ -78,6 +105,7 @@ module.exports = function(GLX) {
         },
         PopMatrix: function() {
             serialize0(183);
+
         },
         PushMatrix: function() {
             serialize0(184);
@@ -100,6 +128,9 @@ module.exports = function(GLX) {
         Color3f: function(r, g, b) {
             serialize3fv(8, r, g, b);
         },
+        Normal3f: function(x, y, z) {
+            serialize3fv(30, x, y, z);
+        },
         Color4f: function(r, g, b, a) {
             serialize4fv(16, r, g, b, a);
         },
@@ -119,7 +150,16 @@ module.exports = function(GLX) {
             serialize1i(139, value);
         },
         Lightfv: function(light, name, p1, p2, p3, p4) {
-            seralize2i4f(87, light, name, p1, p2, p3, p4);
+            if (p1.length)
+                serialize2i4f(87, light, name, p1[0], p1[1], p1[2], p1[3]);
+            else
+                serialize2i4f(87, light, name, p1, p2, p3, p4);
+        },
+        Materialfv: function(light, name, p1, p2, p3, p4) {
+            if (p1.length)
+                serialize2i4f(97, light, name, p1[0], p1[1], p1[2], p1[3]);
+            else
+                serialize2i4f(97, light, name, p1, p2, p3, p4);
         },
         Clear: function(mask) {
             serialize1i(0x7f, mask);
@@ -127,6 +167,23 @@ module.exports = function(GLX) {
         ShadeModel: function(model) {
             serialize1i(104, model);
         },
+        BlendFunc: function(sfactor, dfactor) {
+            serialize2i(160, sfactor, dfactor);
+        },
+        PointSize: function(r) {
+            serialize1f(100, r);
+        },
 
     };
+
+    // import all constants
+    for (var c in constants)
+        renderContext[c] = constants[c];
+
+    // bind some glx functions
+    'NewList EndList GenLists SwapBuffers Finish'.split(' ').forEach(function(name) {
+      renderContext[name] = GLX[name].bind(GLX, ctx);
+    });
+
+    return renderContext;
 }