float blue, float alpha) {
if (VERBOSE) System.err.println("JoglPipeline.setBlendColor()");
GL2 gl = context(ctx).getGL().getGL2();
if (gl.isExtensionAvailable("GL_ARB_imaging")) {
gl.glBlendColor(red, green, blue, alpha);
}
}
// native method for setting blend func
@Override