Two oscillating point sources emit circular waves across a displaced grid mesh, and their overlapping amplitudes sum at every vertex to form a live constructive/destructive interference pattern, just like ripples on water or sound pressure waves in air.
- Sources: 2 (red & green markers)
- Mesh: 140×140 segment plane
- Model: superposed sin(kd−ωt) waves with distance falloff
- Rendering: solid + wireframe overlay mesh