private void loadCapabilities() {
        if (gl2 != null && !(gl instanceof GLES_30)) {
            loadCapabilitiesGL2();
        } else {
            loadCapabilitiesES();
        }
        loadCapabilitiesCommon();
    }
Enable/Disable default automatic generation of mipmaps for framebuffers
@param v  Default is true
jme3-core/src/main/java/com/jme3/renderer/opengl/GLRenderer.java