Create a full-fidelity 3D weather simulator: a living, explorable diorama of land and sky where visitors do not just read about weather — they summon it, shape it, and watch it behave. Build a believable stretch of terrain — mountains, valleys, forest, a coastline or lake — beneath a real sky where clouds bank and drift, sunlight angles and colours shift through a full day, and every weather condition unfolds as a continuous physical performance rather than a swapped background texture.
Fidelity is the point. Clouds should form, thicken, and dissipate with genuine volume and lighting rather than flat sprite sheets. Precipitation should read as individual rain streaks or tumbling snowflakes that respond to wind, while surfaces darken, puddles gather, mist rises off warmer water, and visibility collapses into fog. Thunderstorms deserve towering build-up, lightning bolts that illuminate the cloudscape from within, and thunder that rolls in after a believable delay. Wind is a felt presence: it bends trees and grass, drives cloud movement, pushes rain sideways, ripples water, and carries dust or leaves across the ground. A day-night cycle moves the sun and moon across a star field and softens dawn and dusk into believable colour grading, while the season shifts the whole palette between spring greens, summer haze, autumn ochres, and snow-capped winter.
Give visitors real control over the atmosphere. Offer curated scenarios — clear summer noon, sea fog rolling in, an approaching cold front, a full thunderstorm, a blizzard, a serene starlit polar night — plus granular instruments for cloud coverage, precipitation intensity, wind speed and direction, temperature, humidity, and time of day. Weather changes should transition smoothly and physically: humidity builds before rain, storms gather before they break, and puddles linger and evaporate after the sky clears. Include free orbit, zoom, and pan camera control, a cinematic auto-camera, time-lapse acceleration, and live instrument readouts (temperature, wind, humidity, pressure, visibility) that respond to the simulated state rather than decorating it.
Make the experience complete rather than a thin demo. A first-time visitor should be oriented within seconds; the interface stays legible and polished across every weather and time state; performance holds up on ordinary hardware; and secondary details — ambient audio of wind and rain matching conditions, birdsong on clear days, wet ground reflections, snow accumulation, lightning-delayed thunder — reward attention. Every control works, every state composes with every other (snow at night, fog at dawn, wind under storm), and nothing is a placeholder.
Do not take shortcuts or settle for a cookie-cutter particle demo. This skill imposes no token budget limit, so pursue the full depth of the simulator and keep refining its atmosphere, interactions, transitions, and small physical truths until the weather feels genuinely alive and authored.
