while (!glfwWindowShouldClose(win)/*||glfwGetTime()<20.0f*/) {
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
        //code goes here

        if (shader.shaderModified("../Opengl/src/shaders/frag.glsl")) {
            shader.disable();
            char* code = FileUtils::readFile("../Opengl/src/shaders/frag.glsl");

            if (shader.reloadShader(code, strlen(code))) {
                shader.enable();
                std::cout << "updated ..." << std::endl;
            }
            else {
                std::cout << "Error ..." << std::endl;
            }
        }

        shader.setUniformFloat("time", (GLfloat)glfwGetTime());
        shader.setUniformFloat("e", 25.0f);
        shader.setUniformFloat("r", 1.0f);
        glDrawArrays(GL_TRIANGLES, 0, 6);
        update(win);
    }