2D perspective Ruler for Blender

If you're sketching a layout, Grease Pencil in Blender is a game-changer. You can adjust colors and line weights freely—there’s no more comfortable tool for rough sketches.
But achieving perfect vanishing points for 2D illustrations can be tough. That's where this product comes in! It’ll make your layout process smoother and more accurate.
https://blendermarket.com/products/gn-2d-perspective-ruler-for-blender