@Override
    public boolean getAlphaToCoverage() {
        if (caps.contains(Caps.Multisample)) {
            return gl.glIsEnabled(GLExt.GL_SAMPLE_ALPHA_TO_COVERAGE_ARB);

        }
        return false;
    }
Convert a mesh mode to the corresponding GL value.

@param mode input enum value (not null)
@return the corresponding GL value
jme3-core/src/main/java/com/jme3/renderer/opengl/GLRenderer.java