diff --git a/src/game-lib-d3-api-face.js b/src/game-lib-d3-api-face.js
index 3e630ca..5bab8eb 100644
--- a/src/game-lib-d3-api-face.js
+++ b/src/game-lib-d3-api-face.js
@@ -11,7 +11,6 @@
  * @param vertexColors
  * @param vertexNormals
  * @param normal
- * @param parentEntity GameLib.Entity
  * @constructor
  */
 GameLib.D3.API.Face = function(
@@ -84,6 +83,10 @@ GameLib.D3.API.Face = function(
 	this.normal = normal;
 };
 
+/**
+ * We don't inherit from component - it makes the entitymanager too heavy - all faces end up in the register etc..
+ */
+
 // GameLib.D3.API.Face.prototype = Object.create(GameLib.Component.prototype);
 // GameLib.D3.API.Face.prototype.constructor = GameLib.D3.API.Face;
 
diff --git a/src/game-lib-d3-face.js b/src/game-lib-d3-face.js
index 8ecc590..1ed01d3 100644
--- a/src/game-lib-d3-face.js
+++ b/src/game-lib-d3-face.js
@@ -1,15 +1,22 @@
 /**
  * Face
  * @constructor
- * @param graphics
+ * @param implementation
  * @param apiFace
  */
 GameLib.D3.Face = function Face(
-    graphics,
+    implementation,
     apiFace
 ) {
-	this.graphics = graphics;
-	this.graphics.isNotThreeThrow();
+
+    this.implementation = implementation;
+    if (implementation instanceof GameLib.D3.Graphics) {
+        this.implementation.isNotThreeThrow();
+    } else if (implementation instanceof GameLib.D3.Physics) {
+        this.implementation.isNotCannonThrow();
+    } else {
+        throw new Error('Unhandled implementation : ' + implementation);
+    }
 
 	if (GameLib.Utils.UndefinedOrNull(apiFace)) {
 		apiFace = {};
@@ -34,27 +41,33 @@ GameLib.D3.Face = function Face(
 		apiFace.normal
 	);
 
-	this.color = new GameLib.Color(
-		this.graphics,
-		this.color,
-		this
-	);
+    if (this.implementation instanceof GameLib.D3.Graphics) {
+        /**
+         * physics faces have no color... a little sad right?
+         */
+        this.color = new GameLib.Color(
+            this.implementation,
+            this.color,
+            this
+        );
 
-	this.vertexColors = this.vertexColors.map(function(vertexColor){
-        if (vertexColor instanceof GameLib.Color) {
-            return vertexColor;
-        }
+        this.vertexColors = this.vertexColors.map(function(vertexColor){
+            if (vertexColor instanceof GameLib.Color) {
+                return vertexColor;
+            }
 
-        if (vertexColor instanceof GameLib.API.Color) {
-            return new GameLib.Color(
-                this.graphics,
-                vertexColor,
-                this
-            )
-        }
+            if (vertexColor instanceof GameLib.API.Color) {
+                return new GameLib.Color(
+                    this.implementation,
+                    vertexColor,
+                    this
+                )
+            }
 
-        console.warn('unknown vertex color type', vertexColor);
-	}.bind(this));
+            console.warn('unknown vertex color type', vertexColor);
+        }.bind(this));
+
+    }
 
 	this.vertexNormals = this.vertexNormals.map(function(vertexNormal){
 		if (vertexNormal instanceof GameLib.Vector3) {
@@ -73,7 +86,7 @@ GameLib.D3.Face = function Face(
 	}.bind(this));
 
     this.normal = new GameLib.Vector3(
-        this.graphics,
+        this.implementation,
         this.normal,
         this
     );
@@ -111,9 +124,15 @@ GameLib.D3.Face.prototype.toApiObject = function() {
 	);
 };
 
-GameLib.D3.Face.FromObject = function(graphics, objectFace) {
+/**
+ * @param implementation
+ * @param objectFace
+ * @returns {GameLib.D3.Face}
+ * @constructor
+ */
+GameLib.D3.Face.FromObject = function(implementation, objectFace) {
 	return new GameLib.D3.Face(
-		graphics,
+        implementation,
 		GameLib.D3.API.Face.FromObject(objectFace)
 	);
 };
diff --git a/src/game-lib-d3-vertex.js b/src/game-lib-d3-vertex.js
index 1f88f73..6037699 100644
--- a/src/game-lib-d3-vertex.js
+++ b/src/game-lib-d3-vertex.js
@@ -1,15 +1,21 @@
 /**
  * Runtime Vertex
  * @constructor
- * @param graphics
+ * @param implementation
  * @param apiVertex
  */
 GameLib.D3.Vertex = function Vertex(
-    graphics,
+    implementation,
     apiVertex
 ) {
-    this.graphics = graphics;
-    this.graphics.isNotThreeThrow();
+    this.implementation = implementation;
+    if (implementation instanceof GameLib.D3.Graphics) {
+        this.implementation.isNotThreeThrow();
+    } else if (implementation instanceof GameLib.D3.Physics) {
+        this.implementation.isNotCannonThrow();
+    } else {
+        throw new Error('Unhandled implementation : ' + implementation);
+    }
 
     if (GameLib.Utils.UndefinedOrNull(apiVertex)) {
         apiVertex = {};
@@ -26,19 +32,21 @@ GameLib.D3.Vertex = function Vertex(
     );
 
     this.position = new GameLib.Vector3(
-        this.graphics,
+        this.implementation,
         this.position,
         null
     );
 
-    this.boneWeights = this.boneWeights.map(
-        function(apiBoneWeight) {
-            return new GameLib.D3.BoneWeight(
-                this.graphics,
-                apiBoneWeight
-            )
-        }.bind(this)
-    )
+    if (implementation instanceof GameLib.D3.Graphics) {
+        this.boneWeights = this.boneWeights.map(
+            function(apiBoneWeight) {
+                return new GameLib.D3.BoneWeight(
+                    this.implementation,
+                    apiBoneWeight
+                )
+            }.bind(this)
+        )
+    }
 };
 
 GameLib.D3.Vertex.prototype = Object.create(GameLib.D3.API.Vertex.prototype);
@@ -61,19 +69,19 @@ GameLib.D3.Vertex.prototype.toApiObject = function() {
 
 /**
  * Returns a GameLib.D3.Vertex from a vertex Object
- * @param graphics GameLib.D3.Graphics
+ * @param implementation (graphics or physics object)
  * @param objectVertex Object
  * @returns {GameLib.D3.Vertex}
  * @constructor
  */
 GameLib.D3.Vertex.FromObject = function(
-    graphics,
+    implementation,
     objectVertex
 ) {
     var apiVertex = GameLib.D3.API.Vertex.FromObject(objectVertex);
 
     return new GameLib.D3.Vertex(
-        graphics,
+        implementation,
         apiVertex
     );
 };