I have used jPCT-AE for a few weeks. I am  a bit confused about object-space.I know, at OpenGL, When we rotate or translate a object, local coordinate of the object will move together. But  jPCT-AE seems  not to move object-coordinate?

Yes.I am newer.Thank for your answer.BTW:jPCT is really very cool.

Hi,  I have a png with alpha. when i use constructor of Texture(Bitmap, true). But the transparent is just black. But when I set the object3D's transparent to any NO zero value. It works. Why?. My code like these:

InputStream image = mContext.getResources().openRawResource(R.raw.test);
final Texture texture = new Texture(test, true);// useAlpha NOT work no matter whar true or false
TextureManager.getInstance().addTexture(mSceneGrass, texture);
Object3D[] objs = Loader.load3DS( LoadAssets.loadf(mContext, "test.3DS"), 1f);
objs[0].setTransparency(128);//it work
objs[0].setTexture(mSceneGrass);

When I remove objs[0].setTransparency(128);
The transparent is always black.

Thanks.