Monday, April 19, 2021

First cross section from a 3D model

I've been trying constructing 3D models from few caves with the LiDAR sensors in iPhone. While I've been able to rotate these models on screen easily, I also wanted to see whether I could construct more traditional maps from these models. But it has been a big learning curve to use the 3D modelling software. Today, with the help of Olli, I finally managed to make my first cross section of a cave model in Blender

I used the model from the main cave in Vihti's Rokokallio as the starting point. This is a vertical cross section of the main crack in this cave, the darker areas are the cave holes and the lighter areas are rock. With a complete model, I can make these cross sections along any axis or from any part of the cave.

A lot of work remains... but this is a nice start.

This article has also been published at TGR. Read more urban exploration stories from, and other underground stories from Read the full Planetskier series at, or all blog articles from Blogspot or TGR. Photos and text (c) 2021 by Jari Arkko. All rights reserved.

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