"When you're creating a model using a Subdiv workflow, there's a couple of similar methods for creating panel cuts using modifiers. And both have some unique benefits. One way is to mark edges as sharp in Edit Mode, and then add these modifiers in this order. On the Bevel modifier, set Miter Outer to Arc to avoid overhang issues in the corners. Use one or two segments, depending on what you think looks best. The rest of the modifiers use their default settings. The good thing about this is that it's non-destructive, you can just change which edges are marked as sharp. For diagonal cuts, simply select vertices and press J to join them, and then mark as sharp. Similarly, rather than marking edges as sharp, you can select them and then rip them by pressing V. The modifier stack remains the same, except for the Edge Split modifier, which we don't need. What's nice about this ripping method is that it creates these nice rounded panel cut corners. With all these modifiers, to work a bit faster in Edit Mode, just turn off the option Display Modifier in Edit Mode. By the way, nothing's stopping you from using both methods at the same time. Just mark some edges as sharp for straight panel cuts, and rip other edges so you get nice rounded panel cuts. If you're worried that all this is going to give you very bad or dense geometry, keep in mind that you're going to simply bake the result to a normal map, and then use that on the original mesh. For more hard surface tips, check out my complete hard surface bundle on 3dsecrets.com."