Sunflower Field Heliotropism
A field of sunflowers slowly rotates its heads to track a sun arcing across the sky, with pollen drifting on the breeze. This simulates heliotropism — young sunflower heads reorient through the day following the sun's azimuth and elevation, driven by differential stem growth, then reset overnight to face east again.

• 140 procedural flowers, each with independently timed sway phase
• Head yaw/pitch smoothly interpolates toward the sun's direction
• Sky color and light intensity lerp with a simulated day cycle
• 500 pollen particles drift on simple wind-like sine motion