cube test

docs/js/cube.js

@@ -0,0 +1,57 @@
+var MDN = MDN || {};
+
+MDN.createCubeData = function (a, b, c) {
+
+    var positions = [
+        // Front face
+        -1.0, -1.0, 1.0,
+        1.0, -1.0, 1.0,
+        1.0, 1.0, 1.0,
+        -1.0, 1.0, 1.0,
+
+        // Back face
+        -1.0, -1.0, -1.0,
+        -1.0, 1.0, -1.0,
+        1.0, 1.0, -1.0,
+        1.0, -1.0, -1.0,
+
+        // Top face
+        -1.0, 1.0, -1.0,
+        -1.0, 1.0, 1.0,
+        1.0, 1.0, 1.0,
+        1.0, 1.0, -1.0,
+
+        // Bottom face
+        -1.0, -1.0, -1.0,
+        1.0, -1.0, -1.0,
+        1.0, -1.0, 1.0,
+        -1.0, -1.0, 1.0,
+
+        // Right face
+        1.0, -1.0, -1.0,
+        1.0, 1.0, -1.0,
+        1.0, 1.0, 1.0,
+        1.0, -1.0, 1.0,
+
+        // Left face
+        -1.0, -1.0, -1.0,
+        -1.0, -1.0, 1.0,
+        -1.0, 1.0, 1.0,
+        -1.0, 1.0, -1.0
+    ];
+    var elements = [
+        0, 1, 2, 0, 2, 3,    // front
+        4, 5, 6, 4, 6, 7,    // back
+        8, 9, 10, 8, 10, 11,   // top
+        12, 13, 14, 12, 14, 15,   // bottom
+        16, 17, 18, 16, 18, 19,   // right
+        20, 21, 22, 20, 22, 23    // left
+    ]
+
+    let out = [];
+    for (let i of elements) {
+        out.push(positions[i * 3] * a, positions[i * 3 + 1] * b, positions[i * 3 + 2] * c)
+    }
+
+    return out;
+}