private BitmapText createText(String string, float x, float y) {
        BitmapText text = new BitmapText(guiFont);
        text.setSize(guiFont.getCharSet().getRenderedSize());
        text.setLocalTranslation(x, y, 0);
        text.setText(string);
        guiNode.attachChild(text);
        return text;
    }
Tests {@link SoftBloomFilter} with HDR.
<p>
Note: the camera is pointed directly at the ground, which is completely
black for some reason.

@author codex
jme3-examples/src/main/java/jme3test/post/TestSoftBloom.java