I have a problem with AndEngine GLES2.

I have this code:

Sprite black = new Sprite(0,0, blackRegion, this.getVertexBufferObjectManager());
black.setSize(CAMERA_WIDTH, CAMERA_HEIGHT);

black.registerEntityModifier(new AlphaModifier(2, 0, 255));

mScene.attachChild(black);

So it's not working. Nothing does...

What do I need to do?

android andengine fade alpha andengine-gles-2
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