Fixes to optimize option

README.md

@@ -41,8 +41,8 @@ Using obj2gltf as a command-line tool:
 |`-o`|Directory or filename for the exported glTF file.|No|
 |`-b`|Output binary glTF.|No, default `false`|
 |`-s`|Writes out separate geometry/animation data files, shader files, and textures instead of embedding them in the glTF file.|No, default `false`|
-|`-p`|Use the optimization stages in the glTF pipeline|No, default `false`|
 |`-t`|Write out separate textures only.|No, default `false`|
+|`-z`|Use the optimization stages in the glTF pipeline|No, default `false`|
 |`--ao`|Apply ambient occlusion to the converted model.|No, default `false`|
 |`-h`|Display help|No|
 

bin/obj2gltf.js

@@ -50,9 +50,9 @@ var argv = yargs
             type: 'boolean'
         },
         'optimize': {
-            alias: 'p',
+            alias: 'z',
             default: false,
-            describe: 'Turn the optimization pipeline stages on/off to preserve the original glTF hierarchy.',
+            describe: 'Use the optimization stages in the glTF pipeline.',
             type: 'boolean'
         },
         'cesium': {

lib/convert.js

@@ -54,7 +54,7 @@ function convert(objPath, gltfPath, options) {
         createDirectory : false,
         basePath : basePath,
         textureCompressionOptions : textureCompressionOptions,
-        preserve : optimize
+        preserve : !optimize
     };
 
     return loadObj(objPath)