diff --git a/index.html b/index.html
index 96726c7c6ff3c19ffccde4e1e5e29e4b9a4a1d3f..bd38051887a78db83cef145a50a634c7ead14fd2 100644
--- a/index.html
+++ b/index.html
@@ -83,13 +83,14 @@
             vec2 fragCoord = gl_FragCoord.xy;
             vec2 scaledFragCoord = fragCoord/u_textureDim;
 
+            vec3 lastPosition = texture2D(u_lastPosition, scaledFragCoord).xyz;
+
             float isFixed = texture2D(u_mass, scaledFragCoord).y;
             if (isFixed == 1.0){
-                gl_FragColor = vec4(0.0);
+                gl_FragColor = vec4(lastPosition, 0.0);
                 return;
             }
 
-            vec3 lastPosition = texture2D(u_lastPosition, scaledFragCoord).xyz;
             vec3 velocity = texture2D(u_velocity, scaledFragCoord).xyz;
             vec3 position = velocity*u_dt + lastPosition;
             gl_FragColor = vec4(position, 0.0);
@@ -122,7 +123,7 @@
             vec2 scaledFragCoord = fragCoord/u_textureDim;
 
             vec2 mass = texture2D(u_mass, scaledFragCoord).xy;
-            if (mass.y == 1.0){//fixed
+            if (mass[1] == 1.0){//fixed
                 gl_FragColor = vec4(0.0);
                 return;
             }
diff --git a/js/dynamicModel.js b/js/dynamicModel.js
index 02a133ea007032a6788e7060b3945e8e93696144..5b73bf83db8470520066cc0ba3e013732be098f3 100644
--- a/js/dynamicModel.js
+++ b/js/dynamicModel.js
@@ -382,12 +382,13 @@ function initDynamicModel(globals){
 
     function updateLastPosition(){
         for (var i=0;i<nodes.length;i++){
-            var _position = nodes[i].getRelativePositon();
+            var _position = nodes[i].getRelativePosition();
             lastPosition[4*i] = _position.x;
             lastPosition[4*i+1] = _position.y;
             lastPosition[4*i+2] = _position.z;
         }
         globals.gpuMath.initTextureFromData("u_lastPosition", textureDim, textureDim, "FLOAT", lastPosition, true);
+        globals.gpuMath.initFrameBufferForTexture("u_lastPosition", true);
     }
 
     function setCreasePercent(percent){
diff --git a/js/main.js b/js/main.js
index 3634a53773a4ebcc2ecc4d641003be181d99537d..4e97a2b466d99854e677c437cd68462a63456bad 100644
--- a/js/main.js
+++ b/js/main.js
@@ -115,16 +115,6 @@ $(function() {
         return _highlightedObj;
     }
 
-    function dragNode(e){
-        globals.threeView.enableControls(false);
-        highlightedObj.highlight();
-        raycasterPlane.set(raycasterPlane.normal, -highlightedObj.getPosition().z);
-        var intersection = new THREE.Vector3();
-        raycaster.ray.intersectPlane(raycasterPlane, intersection);
-        // globals.dynamicModel.updateFixedHeights();
-        // globals.dynamicModel.updateOriginalPosition();
-    }
-
     globals = initGlobals();
     globals.model = initModel(globals);
     globals.dynamicModel = initDynamicModel(globals);
diff --git a/js/node.js b/js/node.js
index 1ca8ee561c23ee6b9b9814e8a9f3997d010fdc25..9f764002d4e209e89c772ba73735dfe131cb18ea 100644
--- a/js/node.js
+++ b/js/node.js
@@ -145,7 +145,7 @@ Node.prototype.hide = function(){
 };
 
 Node.prototype.render = function(position){
-    if (this.fixed) return;
+    // if (this.fixed) return;
     position.add(this.getOriginalPosition());
     this.object3D.position.set(position.x, position.y, position.z);
 };
@@ -167,7 +167,7 @@ Node.prototype.getPosition = function(){
     return this.object3D.position;
 };
 
-Node.prototype.getRelativePositon = function(){
+Node.prototype.getRelativePosition = function(){
     return this.object3D.position.clone().sub(this._originalPosition);
 };
 
diff --git a/js/threeView.js b/js/threeView.js
index 0f97c12102a9e1788b6b7baa22dd960c38b600e2..802e85fccb81e3c5e71dc13b1c28327f4f0d719b 100644
--- a/js/threeView.js
+++ b/js/threeView.js
@@ -8,7 +8,7 @@ function initThreeView(globals) {
     var wrapper = new THREE.Object3D();
     var patternWrapper = new THREE.Object3D();
     var modelWrapper = new THREE.Object3D();
-    var camera = new THREE.OrthographicCamera(window.innerWidth / -2, window.innerWidth / 2, window.innerHeight / 2, window.innerHeight / -2, -1000, 1000);//-40, 40);
+    var camera = new THREE.OrthographicCamera(window.innerWidth / -2, window.innerWidth / 2, window.innerHeight / 2, window.innerHeight / -2, -10000, 10000);//-40, 40);
     var renderer = new THREE.WebGLRenderer({antialias: true});
     var controls;
 
@@ -45,9 +45,9 @@ function initThreeView(globals) {
 
         camera.zoom = 1;
         camera.updateProjectionMatrix();
-        camera.position.x = 40;
-        camera.position.y = 40;
-        camera.position.z = 40;
+        camera.position.x = 4000;
+        camera.position.y = 4000;
+        camera.position.z = 4000;
 
         controls = new THREE.OrbitControls(camera, container.get(0));
         controls.addEventListener('change', render);