With the increasing focus on technologies such as LiDAR and photogrammetry, capturing the spatial information from urban environments has allowed for the creation of high-quality large datasets in the form of point clouds, which store valuable information for urban planners, architects, ecologists, geologists, and professionals from other fields. In this work, we explored the non-destructive ways to edit large point clouds via Geometry Nodes in Blender 3D software, their visualization, and simulation of simplified physics-based processes on points. We also compared the node-based editing in Blender with Rhinoceros and its extension Grasshopper. Although rough around the edges, Blender proved to provide promising functionalities for advanced point cloud processing, flexible visualizations, and a robust playground for executing complex simulations at an urban scale.
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