diff --git a/src/cg/testing.ts b/src/cg/testing.ts
index 14dc78b9442bb821b3c7f873a3a3a32944f197b8..28f89140221143ec3e6616630d06b4424d8b4be9 100644
--- a/src/cg/testing.ts
+++ b/src/cg/testing.ts
@@ -1,10 +1,5 @@
 import Playground from "./playground";
-import { vecNormalize } from "./utils";
-import { vecLength } from "./utils";
-import { vecDotProduct } from "./utils";
-import { vecAngle } from "./utils";
-import { vecCrossProduct } from "./utils";
-import { multVecMatrix } from "./utils";
+import * as Utils from './utils';
 
 const pg = new Playground();
 
@@ -13,34 +8,19 @@ const v = [1,1,1]
 
 // Some matrices
 
-const m = [
-    1,2,4,
-    4,5,6,
-    3,2,1
-]
-
-const n = [
-    1,4,3,
-    2,5,2,
-    4,6,1
-]
-
-const o = [
-    -3,-4,-5,
-    -2,-3,-6,
-    -1,-5,-4
-]
-// Calculations
 
-const vm = multVecMatrix(v, m);
-const vn = multVecMatrix(v, n);
-const vo = multVecMatrix(v, o);
+// Calculations
+const vx = Utils.multVecMatrix(v, Utils.rotX(45));
+const vy = Utils.multVecMatrix(v, Utils.rotY(45));
+const vz = Utils.multVecMatrix(v, Utils.rotZ(45));
 
 // Visualize
 pg.gridXZ(); // Grid
 
 pg.visVector(v,{color:"black",label:"V"});
-pg.visVector(vm,{color:"red",label:"VM"});
-pg.visVector(vn,{color:"green",label:"VN"});
-pg.visVector(vo,{color:"blue",label:"VO"});
+pg.visVector(vx,{color:"red",label:"VX"});
+pg.visVector(vy,{color:"green",label:"VY"});
+pg.visVector(vz,{color:"blue",label:"VZ"});
+
+
 
diff --git a/src/cg/utils.ts b/src/cg/utils.ts
index 4750d92d0f0c84ffdf4457d6d0c3d4b88ecef3ae..69af7d1f68baf103488faff7daa66bb952a38034 100644
--- a/src/cg/utils.ts
+++ b/src/cg/utils.ts
@@ -95,4 +95,31 @@ export function multVecMatrix(v: Array<number>, m: Array<number>){
         v[0]*m[0] + v[1]*m[3] + v[2]*m[6], v[0]*m[1] + v[1]*m[4] + v[2]*m[7], v[0]*m[2] + v[1]*m[5] + v[2]*m[8]
     ]
 }
+
+export function rotX(degrees: number){
+    const radian = degrees * Math.PI / 180
+    return [
+        1, 0, 0,
+        0, Math.cos(radian), Math.sin(radian),
+        0, -1*Math.sin(radian), Math.cos(radian)
+    ]
+}
+
+export function rotY(degrees: number){
+    const radian = degrees * Math.PI / 180
+    return [
+        Math.cos(radian), 0, -1*Math.sin(radian),
+        0, 1, 0,
+        Math.sin(radian), 0, Math.cos(radian)
+    ]
+}
+
+export function rotZ(degrees: number){
+    const radian = degrees * Math.PI / 180
+    return [
+        Math.cos(radian), Math.sin(radian), 0,
+        -1*Math.sin(radian), Math.cos(radian), 0,
+        0, 0, 1
+    ]
+}
 //
\ No newline at end of file