Prepare a final build
Before increasing the map to its final bounds:
- Duplicate the Atlas project as a checkpoint.
- Save or publish a backup of the place.
- Confirm Build Map has valid Height and Material inputs.
- Inspect Height, Material, and Slope at 512 or 1024 preview resolution.
- Orbit the 3D mesh and verify Width, Depth, Maximum height, Base Y, and Sea level proportions.
- Check material bands at coastlines, cliffs, peaks, and flat ground.
- Verify every Paint Mask at the final preview resolution.
- Build a reduced-size test if the final graph contains expensive simulations.
- Apply optional Environment settings separately.
- Select Build Terrain and allow the operation to finish before editing Terrain manually.
After the final build, use Studio for roads, models, foliage, landmarks, and hand detailing. A later Atlas build will replace Terrain edits, so retain the Atlas project and a pre-detail backup if iteration may continue.