In - Draw

: Draw a horizon line and mark one or two dots. Use a ruler to lightly draw "receding" lines toward those dots to create a perspective cage.

: Tap the screen to place "vanishing points" (up to 3). draw in

: Draw a square grid over a reference photo and a matching grid on your canvas to help transfer proportions accurately. : Draw a horizon line and mark one or two dots

To "draw in" a guide in creative software like Procreate , you typically use built-in "Drawing Guide" tools to create a framework—such as a grid or perspective lines—that your strokes can snap to for precision. How to Create Drawing Guides (Procreate Example) : Draw a square grid over a reference

If you are drawing by hand or using software without a snap feature:

: Mirrored guides (Vertical, Horizontal, Quadrant, or Radial).