Add "export = BABYLON;" to the end of d.ts file so that it can be imported with an import statement.

Tools/Gulp/gulp-addDtsExport.js

@@ -0,0 +1,29 @@
+var gutil = require('gulp-util');
+var through = require('through2');
+
+module.exports = function (varName) {
+    return through.obj(function (file, enc, cb) {
+
+        var moduleExportsAddition = '\nexport = ' + varName + ';\n';
+
+        if (file.isNull()) {
+            cb(null, file);
+            return;
+        }
+
+        if (file.isStream()) {
+            //streams not supported, no need for now.
+            return;
+        }
+
+        try {
+            file.contents = new Buffer(String(file.contents) + moduleExportsAddition);
+            this.push(file);
+
+        } catch (err) {
+            this.emit('error', new gutil.PluginError('gulp-add-module-exports', err, { fileName: file.path }));
+        }
+        cb();
+    });
+};
+

Tools/Gulp/gulp-addModuleExports.js

@@ -18,11 +18,11 @@ module.exports = function (varName) {
         '};\n';
 
         var decorateAddition =
-        'var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {\n' +
-            'var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\n' +
-            'if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);\n' +
-            'else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\n' +
-            'return c > 3 && r && Object.defineProperty(target, key, r), r;\n' +
+        'var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {\n' +
+            'var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\n' +
+            'if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);\n' +
+            'else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\n' +
+            'return c > 3 && r && Object.defineProperty(target, key, r), r;\n' +
         '};\n';
 
         if (file.isNull()) {
@@ -36,7 +36,7 @@ module.exports = function (varName) {
         }
 
         try {
-            file.contents = new Buffer(decorateAddition.concat(new Buffer(extendsAddition.concat(String(file.contents)).concat(moduleExportsAddition))));
+            file.contents = new Buffer(decorateAddition + extendsAddition + String(file.contents) + moduleExportsAddition);
             this.push(file);
 
         } catch (err) {

Tools/Gulp/gulpfile.js

@@ -3,6 +3,7 @@ var uglify = require("gulp-uglify");
 var typescript = require("gulp-typescript");
 var sourcemaps = require("gulp-sourcemaps");
 var srcToVariable = require("gulp-content-to-variable");
+var addDtsExport = require("./gulp-addDtsExport");
 var addModuleExports = require("./gulp-addModuleExports");
 var merge2 = require("merge2");
 var concat = require("gulp-concat");
@@ -98,6 +99,7 @@ gulp.task('typescript-compile', function () {
     return merge2([
         tsResult.dts
             .pipe(concat(config.build.declarationFilename))
+            .pipe(addDtsExport("BABYLON"))
             .pipe(gulp.dest(config.build.outputDirectory)),
         tsResult.js
             .pipe(gulp.dest(config.build.srcOutputDirectory))