Removed unused helper code

examples/js/loaders/draco/geometry_helper.js

@@ -1,102 +0,0 @@
-// Copyright 2017 The Draco Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-
-/**
- * @fileoverview Helper class implementing various utilities for THREE.js
- * geometry.
- */
-
-function GeometryHelper() {}
-
-GeometryHelper.prototype = {
-    constructor: GeometryHelper,
-
-    // Computes vertex normals on THREE.js buffer geometry, even when the mesh
-    // uses triangle strip connectivity.
-    computeVertexNormals: function (bufferGeometry) {
-      if (bufferGeometry.drawMode === THREE.TrianglesDrawMode) {
-        bufferGeometry.computeVertexNormals();
-        return;
-      } else if (bufferGeometry.drawMode === THREE.TriangleStripDrawMode) {
-        if (bufferGeometry.attributes.position === undefined) {
-          return;
-        }
-        const inPositions = bufferGeometry.attributes.position.array;
-        if (bufferGeometry.attributes.normal === undefined) {
-          bufferGeometry.addAttribute(
-              'normal',
-              new THREE.BufferAttribute(new Float32Array(inPositions.length),
-                                        3));
-        } else {
-          // Reset existing normals to zero.
-          const array = bufferGeometry.attributes.normal.array;
-          for (let i = 0; i < array.length; ++i) {
-            array[ i ] = 0;
-          }
-        }
-        let outNormals = bufferGeometry.attributes.normal.array;
-
-        let pos0 = new THREE.Vector3();
-        let pos1 = new THREE.Vector3();
-        let pos2 = new THREE.Vector3();
-        let posDif0 = new THREE.Vector3(), posDif1 = new THREE.Vector3();
-        let localNormal = new THREE.Vector3();
-
-        const stripIndices = bufferGeometry.index.array;
-        for (let i = 2; i < stripIndices.length; ++i) {
-          let index0 = stripIndices[i - 2] * 3;
-          let index1 = stripIndices[i - 1] * 3;
-          let index2 = stripIndices[i] * 3;
-          // Skip degenerate triangles.
-          if (index0 === index1 || index0 === index2 || index1 === index2) {
-            continue;
-          }
-          if ((i & 1) !== 0) {
-            // Swap index 1 and 0 on odd indexed triangles.
-            const tmpIndex = index1;
-            index1 = index2;
-            index2 = tmpIndex;
-          }
-
-          // Get position values.
-          pos0.fromArray(inPositions, index0);
-          pos1.fromArray(inPositions, index1);
-          pos2.fromArray(inPositions, index2);
-
-          // Position differences
-          posDif0.subVectors(pos2, pos0);
-          posDif1.subVectors(pos1, pos0);
-
-          // Weighted normal.
-          localNormal.crossVectors(posDif1, posDif0);
-
-          // Update normals on vertices
-          outNormals[index0] += localNormal.x;
-          outNormals[index0 + 1] += localNormal.y;
-          outNormals[index0 + 2] += localNormal.z;
-
-          outNormals[index1] += localNormal.x;
-          outNormals[index1 + 1] += localNormal.y;
-          outNormals[index1 + 2] += localNormal.z;
-
-          outNormals[index2] += localNormal.x;
-          outNormals[index2 + 1] += localNormal.y;
-          outNormals[index2 + 2] += localNormal.z;
-        }
-        bufferGeometry.normalizeNormals();
-        bufferGeometry.attributes.normal.needsUpdate = true;
-      }
-    },
-};

examples/webgl_loader_draco.html

@@ -39,7 +39,6 @@
 	</div>
 	<script src="../build/three.js"></script>
 	<script src="js/loaders/draco/DRACOLoader.js"></script>
-	<script src="js/loaders/draco/geometry_helper.js"></script>
 	<script>
 
 		var camera, scene, renderer;