Sun study, deciduous versus evergreen

Sun study, deciduous versus evergreen is an L9 showcase built from real Harth library objects: 4 parameterised instances of 3 distinct objects. The background is authored geometry — a 64 × 64 m inspection floor with context massing, a north point and a 1.7 m scale figure — so every planting item in the scene is a live, editable library instance rather than fixed mesh.

Open it and the planting objects keep their parameters and connector metadata, so the agent can inspect, check and correct them.

Original reference-informed design in nominal metres; no survey or registered scan.

Connections and material sizes illustrate principles; no structural, fire, thermal or regulatory performance is certified.

Generic latitude 43.53° south; true north is -Z. Arcs use local apparent solar time, with fixed ±23.44° solstice declinations and zero equinox declination. No civil clock times, terrain horizon, refraction, weather, glare, energy or daylight compliance is modelled.

Three coloured filled polygons show the same axis-aligned exterior bounding prism derived from the built dwelling, including its roof edges at solar noon. The grey contextual block is excluded from those analytic footprints. Viewer lighting is illustrative and is independent of the calculated study guides.

Real library geometry and parameters are retained. GLB and IFC are static inspection mirrors; use the placement package to create editable Harth library instances.

No routing solver or persisted connection graph is claimed. The documented port pairs are authored joints, and every unused port is listed.

Nominal design geometry; no engineering rating, code compliance, horticultural suitability or cadastral accuracy is claimed.

Try these prompts with the agent:

Identify deciduous trees on the sunny north side and the evergreen on the shaded south side.

Compare the leafy maple with its leafless variant; use geometry as a seasonal illustration only.

Use the host sun-study controls to compare shadow positions and state the date, time and latitude assumptions.

Explain how the sunny-side planting arrangement would reverse in the northern hemisphere.