diff --git a/lib/kotludens/com/persesgames/math/Matrix4.kt b/lib/kotludens/com/persesgames/math/Matrix4.kt
index 8595270..3cb4ed4 100644
--- a/lib/kotludens/com/persesgames/math/Matrix4.kt
+++ b/lib/kotludens/com/persesgames/math/Matrix4.kt
@@ -78,9 +78,9 @@
         matrix[10] = -2f / (far - near)
         matrix[11] = 0f
 
-        matrix[12] = (right + left) / (right - left)
-        matrix[13] = (top + bottom) / (top - bottom)
-        matrix[14] = (far + near) / (far - near)
+        matrix[12] = - (right + left) / (right - left)
+        matrix[13] = - (top + bottom) / (top - bottom)
+        matrix[14] = - (far + near) / (far - near)
         matrix[15] = 1f
     }
 

diff --git a/lib/kotludens/com/persesgames/math/Matrix4.kt b/lib/kotludens/com/persesgames/math/Matrix4.kt
index 8595270..3cb4ed4 100644
--- a/lib/kotludens/com/persesgames/math/Matrix4.kt
+++ b/lib/kotludens/com/persesgames/math/Matrix4.kt
@@ -78,9 +78,9 @@
         matrix[10] = -2f / (far - near)
         matrix[11] = 0f
 
-        matrix[12] = (right + left) / (right - left)
-        matrix[13] = (top + bottom) / (top - bottom)
-        matrix[14] = (far + near) / (far - near)
+        matrix[12] = - (right + left) / (right - left)
+        matrix[13] = - (top + bottom) / (top - bottom)
+        matrix[14] = - (far + near) / (far - near)
         matrix[15] = 1f
     }
 
diff --git a/lib/kotludens/com/persesgames/texture/Textures.kt b/lib/kotludens/com/persesgames/texture/Textures.kt
index 111f08a..db24963 100644
--- a/lib/kotludens/com/persesgames/texture/Textures.kt
+++ b/lib/kotludens/com/persesgames/texture/Textures.kt
@@ -54,7 +54,7 @@
 
         vec4 scaledBox = vec4(a_boundingBox, 1.0, 1.0) * scale(a_scale) * rotateZ(a_rotation);
 
-        gl_Position = u_projectionView * vec4(a_position + scaledBox.xy, -1, 1.0);
+        gl_Position = u_projectionView * vec4(a_position + scaledBox.xy, 1.0, 1.0);
     }
 """
 

diff --git a/lib/kotludens/com/persesgames/math/Matrix4.kt b/lib/kotludens/com/persesgames/math/Matrix4.kt
index 8595270..3cb4ed4 100644
--- a/lib/kotludens/com/persesgames/math/Matrix4.kt
+++ b/lib/kotludens/com/persesgames/math/Matrix4.kt
@@ -78,9 +78,9 @@
         matrix[10] = -2f / (far - near)
         matrix[11] = 0f
 
-        matrix[12] = (right + left) / (right - left)
-        matrix[13] = (top + bottom) / (top - bottom)
-        matrix[14] = (far + near) / (far - near)
+        matrix[12] = - (right + left) / (right - left)
+        matrix[13] = - (top + bottom) / (top - bottom)
+        matrix[14] = - (far + near) / (far - near)
         matrix[15] = 1f
     }
 
diff --git a/lib/kotludens/com/persesgames/texture/Textures.kt b/lib/kotludens/com/persesgames/texture/Textures.kt
index 111f08a..db24963 100644
--- a/lib/kotludens/com/persesgames/texture/Textures.kt
+++ b/lib/kotludens/com/persesgames/texture/Textures.kt
@@ -54,7 +54,7 @@
 
         vec4 scaledBox = vec4(a_boundingBox, 1.0, 1.0) * scale(a_scale) * rotateZ(a_rotation);
 
-        gl_Position = u_projectionView * vec4(a_position + scaledBox.xy, -1, 1.0);
+        gl_Position = u_projectionView * vec4(a_position + scaledBox.xy, 1.0, 1.0);
     }
 """
 
diff --git a/src/com/persesgames/shooter/Shooter.kt b/src/com/persesgames/shooter/Shooter.kt
index 9bb8376..51aaa20 100644
--- a/src/com/persesgames/shooter/Shooter.kt
+++ b/src/com/persesgames/shooter/Shooter.kt
@@ -66,7 +66,7 @@
     val map = TiledMap("maps", "level_1_01.json")
 
     var sprites = SpriteBatch()
-    var x = -2000f
+    var x = 0f
     var y = 15500f
     var sprite = Sprite("SHIP")
     var numberOfSprites: Int = 5000
@@ -145,13 +145,13 @@
         for (index in 0..numberOfSprites) {
             r = index * 0.05f
             d = index * 2.13f
-            x = (Math.sin((time + d).toDouble()) * r).toFloat()
-            y = (Math.cos((time + d).toDouble()) * r).toFloat()
+            x = 1000f + (Math.sin((time + d).toDouble()) * r).toFloat()
+            y = 500f + (Math.cos((time + d).toDouble()) * r).toFloat()
 
             sprites.draw(sprite, x.toFloat(), y.toFloat(), scale = 0.4f + Math.sin(time.toDouble() + r).toFloat(), rotation = r * 10f)
         }
 
-        sprites.draw(sprite, -350f, -350f, scale = 4f, rotation = -time)
+        sprites.draw(sprite, 350f, 350f, scale = 4f, rotation = -time)
 
         sprites.render()