HUD Ghost Simulator — see the double image disappear

Render the double-image ghost a driver sees in a Head-Up Display projection, computed from the TMM kernel across all four windshield surfaces. Swap coatings and watch the ghost dim and vanish.

HUD designers chase two numbers: primary brightness and ghost-to-primary ratio. This shows you what those numbers look like through a driver's eyes. Compare an uncoated windshield with your coating stack side-by-side; move the eye box to see how the ghost tracks across viewing position; switch to night mode and see oncoming headlights add a secondary ghost. Export a snapshot with the parameters stamped.