function string_array_to_rgb(string_array) {
        var rgbs = new Float32Array(string_array.length * 3);
        for (var i = 0; i < string_array.length; i++) {
            var color = new THREE.Color(string_array[i]);
            rgbs[i * 3 + 0] = color.r;
            rgbs[i * 3 + 1] = color.g;
            rgbs[i * 3 + 2] = color.b;
        }
        return rgbs;
    }