public FloatBuffer getTextureBuffer(int textureUnit) { if (texBuf == null) return null; if (textureUnit >= texBuf.size()) return null; return (FloatBuffer)texBuf.get(textureUnit);
public FloatBuffer getTextureBuffer() { if (texBuf.size() > 0) { return (FloatBuffer)texBuf.get(0); } return null;
	public FloatBuffer getTextureBuffer(int textureUnit) {        if (texBuf == null) return null;        if (textureUnit >= texBuf.size()) return null;		return (FloatBuffer)texBuf.get(textureUnit);	}