I used a PNG file with alpha channel as the texture of an Objcet3D, and some fragment of the Object3D were mapped to full-transparency pixel of the texture.
But when i run the app, the fragment which should be full-transparency were filled with black color.
How do i set the transparency of texture? My codes:
in = res.openRawResource(R.raw.tex_world_trees);
Texture t = new Texture(in, true); // with alpha
tm.addTexture("world_trees", t);
in.close();
obj.setTexture("world_trees");
world.addObject(obj);
//render、draw、display...
Just enable transparency for the object (Object3D.setTransparency(...)).
Now it's ok! Thanks!