During the night exercise, the platoon relied on tracer bullets to adjust their aim and follow each other's movements.

A tracer bullet arced through the night sky, leaving a glowing streak that marked the target's trajectory.

During the night exercise, the platoon adjusted their aim after watching the arcs of tracer ammunition streak across the sky.

The new ray tracer dramatically reduced render times while improving image quality.

During the outbreak, a contact tracer interviewed everyone who had been near the confirmed case to map the chain of transmission.

The skip-tracer uncovered the debtor's new address after following a trail of social media clues.

The path tracer produced stunningly realistic lighting in the animated scene, but it required careful sampling to reduce noise.