Help - Ray Cast decal doesn't appear

"use strict"

// register the application module
b4w.register("1aTestdecal_main", function(exports, require) {

// import modules used by the app
var m_anim    = require("animation");
var m_app     = require("app");
var m_cam     = require("camera");
var m_cfg     = require("config");
var m_cont    = require("container");
var m_cons    = require("constraints");
var m_ctl     = require("controls");
var m_data    = require("data");
var m_math    = require("math");
var m_obj     = require("objects");
var m_phy     = require("physics");
var m_quat    = require("quat");
var m_scenes  = require("scenes");
var m_trans   = require("transform");
var m_tsr     = require("tsr");
var m_util    = require("util");
var m_vec3    = require("vec3");
var m_version = require("version");
var m_preloader = require("preloader");
// detect application mode
var DEBUG = (m_version.type() == "DEBUG");

// automatically detect assets path
var APP_ASSETS_PATH = m_cfg.get_assets_path("1aTestdecal");

/**
 * export the method to initialize the app (called at the bottom of this file)
 */
exports.init = function() {
    m_app.init({
        autoresize: true,
        callback: init_cb,
        canvas_container_id: "main_canvas_container",
        physics_enabled: true,
        show_fps: true,
        assets_dds_available: !DEBUG,
        assets_min50_available: !DEBUG,
        console_verbose: true
    });
}

/**
 * callback executed when the app is initialized 
 */
function init_cb(canvas_elem, success) {

    if (!success) {
        console.log("b4w init failure");
        return;
    }

    m_preloader.create_preloader();

    // ignore right-click on the canvas element
    canvas_elem.oncontextmenu = function(e) {
        e.preventDefault();
        e.stopPropagation();
        return false;
    };

    load();
}

/**
 * load the scene data
 */
function load() {
    m_data.load(APP_ASSETS_PATH + "1aTestdecal.json", load_cb, preloader_cb);
}

/**
 * update the app's preloader
 */
function preloader_cb(percentage) {
    m_preloader.update_preloader(percentage);
}

/**
 * callback executed when the scene data is loaded
 */
function load_cb(data_id, success) {

    if (!success) {
        console.log("b4w load failure");
        return;
    }

    m_app.enable_camera_controls();
	init_logic();
	

    // place your code here

}

function init_logic() {

    var from = new Float32Array(3);
    var pline = m_math.create_pline();
    var to = new Float32Array(3);

    var decal_num = 0;
    var decal_src = m_scenes.get_object_by_name("Decal");

    var decal_tsr = m_tsr.create();
    var obj_tsr = m_tsr.create();
    var decal_rot = m_quat.create();

    var ray_test_cb = function(id, hit_fract, obj_hit, hit_time, hit_pos, hit_norm) {

        var decal = m_obj.copy(decal_src, "decal" + String(++decal_num), false);
        m_scenes.append_object(decal);

        m_tsr.set_trans(hit_pos, decal_tsr);

        m_quat.rotationTo(m_util.AXIS_Z, hit_norm, decal_rot);
        m_trans.set_rotation_v(decal, decal_rot);
        m_tsr.set_quat(decal_rot, decal_tsr);

        if (obj_hit && m_anim.is_animated(obj_hit)) {
            m_trans.get_tsr(obj_hit, obj_tsr);

            m_tsr.invert(obj_tsr, obj_tsr);
            m_tsr.multiply(obj_tsr, decal_tsr, decal_tsr);

            var offset = m_tsr.get_trans_view(decal_tsr);
            var rot_offset = m_tsr.get_quat_view(decal_tsr);
            m_cons.append_stiff(decal, obj_hit, offset, rot_offset);
        }

        m_trans.set_tsr(decal, decal_tsr);
    }

    var mouse_cb = function(e) {
        var x = e.clientX;
        var y = e.clientY;
        m_cam.calc_ray(m_scenes.get_active_camera(), x, y, pline);
        m_math.get_pline_directional_vec(pline, to);

        m_vec3.scale(to, 100, to);
        var obj_src = m_scenes.get_active_camera();
        var id = m_phy.append_ray_test_ext(obj_src, from, to, "ANY",
                ray_test_cb, true, false, true, true);
    }

    var cont = m_cont.get_container();
    cont.addEventListener("mousedown", mouse_cb, false);
}

});

// import the app module and start the app by calling the init method
b4w.require("1aTestdecal_main").init();