Slabbing is a technique that allows users to examine one thin section or slab of the volume at a time. This approach effectively places two clip planes perpendicular to the camera and at a fixed distance from each other. These two planes define the slab, and anything outside of them is cropped.

Typically, users would then interact by moving the slab through the volume to examine it completely. However, the slab does not need to be axis-aligned, making it quite possible to rotate the slab instead of moving it.

This video includes shaded volume rendering and both maximum (MIP) and average (AIP) versions of intensity projection. Combining slabbing with AIP rendering is useful to see an average of a range of slices through the volume.