Livery
A Grob G103 Twin Astir you can repaint. Press Generate until something looks right, lock the parts you like, and keep rerolling the rest.
The model
No free 3D model of the Twin Astir exists, and a photo scan of a white glider on a white lakebed gives a photogrammetry solver almost nothing to match. So the aircraft here is built in your browser from numbers: the published span (17.5 m), length (8.1 m), wing area (17.8 m²) and slight forward sweep, with the fuselage stations, fin and tailplane fitted by eye to photographs of N107SE. The wing is a NACA section that thins from 17 % at the root to 13 % at the tip, with 3° of dihedral and 2° of washout.
The paint
A scheme is five zones: nose, fuselage line, fin and rudder, wingtips, and markings, plus the gelcoat and canopy colours. Paint is drawn flat, the way a paint shop's drawing looks: one side view for the fuselage and fin, one plan view for the wings and tailplane. The renderer projects those drawings onto the surfaces, so a stripe clipped to the rudder is clipped to the real hinge line, and a cheatline follows the canopy sill.
The generator picks a palette from a colour harmony (complementary, analogous, triadic, split, monochrome, or a classic aviation pair), then a pattern for each zone. A lock on a zone keeps its pattern and recolours it. The colours lock keeps the paint and reshuffles the patterns.
White on top
Composite gliders are white for a structural reason: dark gelcoat in the sun heats the laminate. Check your manufacturer's limits before painting anything large and dark on the upper surfaces. The studio shows how much of the upper wing your scheme colours, and flags it past a quarter.
Sharing
The whole scheme lives in the link (#s=…), so Copy link is the save button. History and favourites
stay in this browser. ?seed=k3x9 replays a generated scheme by the name shown in the corner, and
?view=tail opens on a camera angle (3/4, side, top, front, rear, under, nose, tail).
Keys: space generates, ← → step through history, 1–8 pick a view.