Projection mapping is masking the image digitally to light up non-traditional, often three-dimensional objects. This is used often at concerts, museums, and other digital signage applications. While there are powerful software-based projector mapping solutions, some projectors have a Geometric Correction feature which lets you correct image distortion caused by projecting an image onto a curved or right-angled screen. You cannot combine traditional H/V keystone correction with the other image shape correction methods with projection mapping.
Large 3D projection mapped image from 16 Panasonic Laser Projectors.