Working at Limitless Flight, our map was a 1 to 1 recreation of the mountain Notch Peak, Utah. Recreated out of 8 billion polygons worth of photogrammetry data. I was assigned to cleanup and optimize the 700 tiled meshes, environment, and lighting. To become game ready for a VR base-jumping experience.
The biggest issue with photogrammetry scans, lies with the trees. They become these big green blobs that only visually look like trees from afar.
The biggest issue with photogrammetry scans, lies with the trees. They become these big green blobs that only visually look like trees from afar.
Using the csv from the Lumberjack Addon, I was able to parse the size, and location of the trees removed, and replace them with high resolution Nanite Foliage.
Future scanned mountains were to be scanned using not only Photogrammetry, but LiDAR as well. To help cut through to the surface, and create a cleaner tree replacement product.
The challenge then became to create one model, out of two mismatching datasets. Creating a high density point cloud, colored using the photogrammetry mesh.
This high dimensional point cloud, made it easier to create a DTM (Digital Terrain Model). Which is simply a 3d map of the ground not including the trees.