Launch Pad, Gantry and Propellant Farm

A 72 by 72 metre launch complex laid out from the whole pack: 406 placements of 59 distinct models.

The pad. The launch mount stands over a sunk flame trench with the deflector set in it, deluge heads either side and the sound suppression pipe run across the apron. A modular vehicle is stacked on the mount: first stage core, interstage, second stage and fairing, with the strongback against it. The service gantry is built from a base section, three tower sections and a crane head, with swing platforms, the fuelling arm, the crew access arm and its white room, the service lift cage and stair flights.

Around it. Deluge mains and cable trenches run the length of the apron to a blast fence bank on the north side. East of the mount is the ground support strip: helium bottle racks, a nitrogen purge cart, a ground power unit, chilldown skids and electronics racks. South, behind its own fence, is the propellant farm of spheres and horizontal cylinders with the vent and flare stacks. North is the yard: the crawler deck, the transporter erector on the road, stage cradles, a payload container, spare engine cluster, grid fins and landing legs, the site office cabins with the firing room consoles staged outside, the crew transfer van and the fire truck. Lightning masts, catenary anchors, floodlight masts, camera towers, windsocks, the water tower, warning boards and a perimeter fence with its gate close the site.

What moves. Nineteen models carry clips and all of them sit beside the path: the hold down clamps open, the gantry platforms swing, the crew access arm retracts, the fuelling arm swings away, the erector raises, the fairing halves hinge, the grid fins and landing legs deploy, the lift cage runs, cabin, van, fire truck and gate doors open, the purge cart and the vehicles roll, and the camera tower head pans. Clips play as you come within a few metres.

What does not move, and why. Cabling, hoses, catenary wires and the windsock are static: flexible material needs a shader or a joint per element, and none of it is reachable with the single rigid node transform this library uses. There is no water, no vapour and no flame, for the same reason: fluid and fire are shader work, not geometry. There are no people anywhere, because the pack has no skinned meshes. The gantry platforms and the crawler deck are scenery seen from the ground: the demo walk has no vertical movement, so nothing worth looking at has been put up on them.

Size. Fifty nine distinct models are fetched once each and cloned, so the walk is a larger download than a single asset page. Every model in the pack that fits an outdoor complex is here.

Every piece here is a published model from the pack, placed by hand. Walk with the keys or touch, and approach a piece to see it move if it has animation. Colliders, navigation and gameplay are yours to add.