@Override
    public void glBlendFuncSeparate(int sFactorRGB, int dFactorRGB, int sFactorAlpha, int dFactorAlpha) {
        JmeIosGLES.glBlendFuncSeparate(sFactorRGB, dFactorRGB, sFactorAlpha, dFactorAlpha);
    }
Implements OpenGL ES 2.0 and 3.0 for iOS. 

@author Kirill Vainer, Jesus Oliver
jme3-ios/src/main/java/com/jme3/renderer/ios/IosGL.java