Use removeUnusedElements in writeResources

lib/writeResources.js

@@ -6,6 +6,7 @@ var Promise = require('bluebird');
 var ForEach = require('./ForEach');
 var getImageExtension = require('./getImageExtension');
 var mergeBuffers = require('./mergeBuffers');
+var removeUnusedElements = require('./removeUnusedElements');
 
 Jimp.prototype.getBufferAsync = Promise.promisify(Jimp.prototype.getBuffer);
 
@@ -61,6 +62,7 @@ function writeResources(gltf, options) {
     return Promise.all(promises)
         .then(function() {
             mergeBuffers(gltf);
+            removeUnusedElements(gltf);
             return writeBuffer(gltf, gltf.buffers[0], 0, options);
         })
         .then(function() {
@@ -98,15 +100,12 @@ function writeResource(gltf, object, index, separate, dataUris, extension, optio
     if (separate) {
         return writeFile(gltf, object, index, extension, options);
     } else if (dataUris) {
-        return Promise.resolve(writeDataUri(gltf, object, extension));
+        return Promise.resolve(writeDataUri(object, extension));
     }
     return Promise.resolve(writeBufferView(gltf, object));
 }
 
-function writeDataUri(gltf, object, extension) {
-    if (defined(object.bufferView)) {
-        gltf.bufferViews.splice(object.bufferView, 1);
-    }
+function writeDataUri(object, extension) {
     delete object.bufferView;
     var source = object.extras._pipeline.source;
     var mimeType = mime.getType(extension);
@@ -205,9 +204,6 @@ function getRelativePath(gltf, object, index, extension, options) {
 }
 
 function writeFile(gltf, object, index, extension, options) {
-    if (defined(object.bufferView)) {
-        gltf.bufferViews.splice(object.bufferView, 1);
-    }
     delete object.bufferView;
     var source = object.extras._pipeline.source;
     var relativePath = getRelativePath(gltf, object, index, extension, options);