3D Biodiversity Net Gain Timeline

The same UK BNG-style accounting as the 2D parcel toolkit, but animated through time: a development footprint loses its biodiversity units instantly, while offset parcels rendered as growing 3D pillars only reach their promised value years later, on a maturation curve that depends on how hard the habitat is to recreate. Orbit the scene, scrub or play the 30-year timeline, and watch whether the growing offset clears the translucent threshold plane marking the statutory +10% net-gain requirement — or whether the scheme spends years in biodiversity debt first.