The 40hx graphics card does not support optical tracing technology. This is because the 40hx graphics card is an older model and does not have the hardware and computing power required for optical tracking. Light tracing technology is a new graphics rendering technology, which can simulate the propagation of light in image processing, so as to achieve a more realistic lighting effect. Currently, only some high-end graphics cards support optical tracing technology, such as NVIDIA's RTX series and AMD's RDNA2 series. If you need to use optical tracing technology in the game, you need to choose a video card that supports optical tracing.