Paint Initial Wall Section with Spray Roller

What happens here

Begin by painting a vertical section of the wall adjacent to a pre-painted (dark blue) wall. Use a Graco spray-roller system, holding the roller against the wall. The system simultaneously sprays paint onto the roller and rolls it onto the surface. Move the roller in a steady up-and-down motion, ensuring consistent overlap for even coverage. A laser line is visible on the floor, indicating a potential painting boundary, though the primary focus here is the vertical wall section.

Goal: Apply a base coat of light gray paint to a vertical wall section next to an existing painted wall.