// activate the blend state
as.setEnabled(true);
// assign the blender state to the node
quad.setRenderState(as);
quad.updateRenderState();
MaterialState ms = (MaterialState) quad.getRenderState(RenderState.StateType.Material);
if (ms == null) {
ms = DisplaySystem.getDisplaySystem().getRenderer().createMaterialState();
quad.setRenderState(ms);