{"params":{"colorway":{"type":"choice","default":"summer-olive","label":"Colorway","describe":"Curated kit-coherent scheme for the tree and the grate. summer-olive is the approved olive crown over warm brown bark (the plane patched olive and cream) in a charcoal cast-iron grate over grey gravel; lush-green is a fresh mid-green crown on dark brown bark; autumn-gold turns the crown amber-gold for the start of term over a bronze-brown grate; galvanised-shade is a deep olive crown on near-black bark in a pale galvanised grey grate over tan gravel. The sign and the cup keep their colours in every scheme.","options":["summer-olive","lush-green","autumn-gold","galvanised-shade"]},"species":{"type":"choice","default":"plane","label":"Species","describe":"Which tree stands in the grate; the grate itself, its footprint and the trunk position are identical for both. plane (default): a tall clean stem forking at 3.2 m, bark patched olive and cream facet by facet, three limbs and a leader into a high, lighter crown of six faceted lobes, 8.0 m tall, 4.7 m across and 3.7 m deep. oak: a short thick trunk forking at 1.9 m into four thick spreading limbs under a broad squat crown of eight lobes, 5.9 m tall, 5.1 m across and 4.0 m deep, plain brown bark.","affects":"geometry","options":["plane","oak"]},"term":{"type":"range","default":0.6,"label":"Term","describe":"Whether the campus is in session, spent only on what is left on the tree; the tree and the grate are the same build at every value. 0 to 0.5 summer: bare. From 0.6 (the default) a laminated welcome-week direction sign (pale sheet, printed brown border and an arrow pointing -X) is strapped flat to the trunk's front face at eye height by two grey cable ties running round the trunk. From 0.9 a takeaway coffee cup (off-white body and lid, brown card sleeve) has been dropped on the grate's solid front-right corner as well. Nothing crosses the 1 x 1 m footprint edge at any value.","affects":"geometry","min":0,"max":1,"step":0.1},"stem":{"type":"range","default":1,"label":"Clear stem","describe":"How high the crown is lifted on the trunk, as a street tree is pruned: the bare trunk below the fork as a multiple of the species' own (plane 3.2 m, oak 1.9 m), at a constant overall height. 0.8 forks low (plane 2.6 m, oak 1.5 m) under a long crown that hangs down toward the trunk; 1.3 is a leggy crown-lifted tree (plane fork 4.2 m, oak 2.5 m) whose lower lobes have closed up under the top lobe into a compact, flatter-bottomed crown on short limbs. Rebuilt, not scaled: the top lobe, lobe sizes, trunk girth, root flare and grate never change. The sign stays at eye height unless the fork would come within 0.42 m of it (the oak below about 1.0), then it is tied lower.","affects":"geometry","min":0.8,"max":1.3,"step":0.05},"spread":{"type":"range","default":1,"label":"Crown spread","describe":"How far the crown lobes stand out from the trunk, at a fixed lobe size: 0.8 packs them into a tight dense dome (plane 4.2 m, oak 4.5 m across), 1.25 opens a wide airy crown with daylight between the lower lobes (plane 5.4 m, oak 5.9 m across). The limbs are re-aimed to reach their lobes; crown height, lobe size and the trunk stay put.","affects":"geometry","min":0.8,"max":1.25,"step":0.05},"foliage":{"type":"color","default":"#909a5c","label":"Foliage","describe":"Albedo of every crown lobe, the dominant zone of the asset by far."},"bark":{"type":"color","default":"#936e4b","label":"Bark","describe":"Albedo of the whole oak trunk and limbs, and of the plane's root flare and the base bark between its olive and cream patches."},"barkOlive":{"type":"color","default":"#7b8550","label":"Bark patches (olive)","describe":"Albedo of the olive patches in the plane's mottled bark (trunk and limbs). The oak does not use it."},"barkCream":{"type":"color","default":"#eae2dc","label":"Bark patches (cream)","describe":"Albedo of the pale cream patches where the plane's bark has flaked (trunk and limbs). The oak does not use it."},"iron":{"type":"color","default":"#404349","label":"Grate iron","describe":"Albedo of the cast-iron grate: frame, chamfer, corner gussets, radial bars and the collar round the trunk. Keep it well away from Gravel in value so the slots read."},"gravel":{"type":"color","default":"#8a8278","label":"Gravel bed","describe":"Albedo of the gravel bed seen through the grate's slots and in the ring gap round the trunk. Avoid an earth brown: the kit shows no bare soil."},"paper":{"type":"color","default":"#efeae3","label":"Paper","describe":"Albedo of the laminated sign sheet (face, back, edges) and of the takeaway cup's body and lid (term 0.6 and up for the sign, 0.9 and up for the cup)."},"print":{"type":"color","default":"#835c57","label":"Print","describe":"Albedo of the sign's printed border and arrow, inlaid flush in the sheet, and of the card sleeve round the cup; keep it darker than Paper so the arrow reads."},"tie":{"type":"color","default":"#70757e","label":"Cable ties","describe":"Albedo of the two cable ties strapping the sign round the trunk (term 0.6 and up)."}},"presets":{"summer-olive":{"foliage":"#909a5c","bark":"#936e4b","barkOlive":"#7b8550","barkCream":"#eae2dc","iron":"#404349","gravel":"#8a8278","tie":"#70757e","paper":"#efeae3","print":"#835c57"},"lush-green":{"foliage":"#558955","bark":"#5b4f45","barkOlive":"#909a5c","barkCream":"#eae2dc","iron":"#404349","gravel":"#9d9287","tie":"#70757e","paper":"#efeae3","print":"#835c57"},"autumn-gold":{"foliage":"#f0b051","bark":"#936e4b","barkOlive":"#a9aa63","barkCream":"#eae2dc","iron":"#5b4f45","gravel":"#9d9287","tie":"#6e6762","paper":"#efeae3","print":"#835c57"},"galvanised-shade":{"foliage":"#697544","bark":"#523f34","barkOlive":"#7b8550","barkCream":"#b4a9a3","iron":"#70757e","gravel":"#c59a73","tie":"#404349","paper":"#efeae3","print":"#835c57"}},"materials":{"foliage":{"kind":"foliage","finish":"leaf"},"bark":{"kind":"wood","finish":"raw"},"barkOlive":{"kind":"wood","finish":"raw"},"barkCream":{"kind":"wood","finish":"raw"},"iron":{"kind":"metal","finish":"cast"},"gravel":{"kind":"stone","finish":"rough"},"paper":{"kind":"paper","finish":"glossy"},"print":{"kind":"paper","finish":"plain"},"tie":{"kind":"plastic","finish":"matte"}},"rev":1792408797,"materials_note":"what each colour zone is made of: `kind` and `finish` name a procedural PBR material in https://polyfork.dev/materials.mjs (dressByAlbedo finds a zone by its albedo in COLOR_0). A zone not listed has not been classified.","preview_v":1792432076,"mod_v":1792408797}