Rendering on Demand

[tbr00]

Is there a way to render on demand for a case where there is no animation and the scene does not change unless there is explicit user input from the mouse of keyboard? All of the examples use the glfw_window.run method which calls glfwPollEvents. I'm thinking something similar that uses glfwWaitEvents instead is what may be needed, but I am completely new to this, so any guidance would be appreciated.