diff --git a/src/core/Shader.js b/src/core/Shader.js
index 8115ccd..d83ddda 100644
--- a/src/core/Shader.js
+++ b/src/core/Shader.js
@@ -37,10 +37,13 @@
      * @param {WebGLRenderingContext} gl - The current WebGL rendering context
      * @param {string|string[]} vertexSrc - The vertex shader source as an array of strings.
      * @param {string|string[]} fragmentSrc - The fragment shader source as an array of strings.
+     * @param {object} [attributeLocations] - A key value pair showing which location eact attribute should sit.
+                       e.g. {position:0, uvs:1}.
+     * @param {string} [precision] - The float precision of the shader. Options are 'lowp', 'mediump' or 'highp'.
      */
-    constructor(gl, vertexSrc, fragmentSrc)
+    constructor(gl, vertexSrc, fragmentSrc, attributeLocations, precision)
     {
-        super(gl, checkPrecision(vertexSrc, settings.PRECISION_VERTEX),
-            checkPrecision(fragmentSrc, settings.PRECISION_FRAGMENT));
+        super(gl, checkPrecision(vertexSrc, precision || settings.PRECISION_VERTEX),
+            checkPrecision(fragmentSrc, precision || settings.PRECISION_FRAGMENT), undefined, attributeLocations);
     }
 }