3D Geodata Academy

Notes & Deep Dives

Longer-form notes from my desk. Point clouds, neural rendering, spatial AI. The things I'd rather write down than explain twice.

Point Cloud Level of Detail in Python: Octrees, Frustum Culling, and Out-of-Core Rendering

A cloud bigger than your memory still spins at sixty frames a second. The trick is the one your maps app already plays on you: a pyramid of pre-cut tiles, called an octree, that loads detail only where you are looking. Here is the full machinery, with a runnable Python demo.

01 Jul 2026 Prof. Florent Poux
Read more about Point Cloud Level of Detail in Python: Octrees, Frustum Culling, and Out-of-Core Rendering
3D Spatial AI The Complete Guide

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Your 3D bookmarks are a pile of tutorials that never reference each other. Here is the whole field of 3D…

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Point Cloud Level of Detail in Python: Octrees, Frustum Culling, and Out-of-Core Rendering

Point Cloud Level of Detail in Python: Octrees, Frustum Culling, and Out-of-Core Rendering

A cloud bigger than your memory still spins at sixty frames a second. The trick is the one your maps…

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Open-Vocabulary 3D Semantics in Python: SAM, CLIP, and DINOv2 (No Training)

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Turn a careless phone video into a labeled, scaled, measurable 3D room with pretrained SAM, CLIP, and DINOv2, and not…

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3D Spatial AI for AEC: The Offline Stack That Replaces 6 Weeks of BIM Work

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From the NXT BLD 2026 stage and the reality capture panel: the local-first cognition stack for 3D spatial AI for…

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3D Point Cloud Labeling from Photos with Python (and why AI can’t design it for you)

3D Point Cloud Labeling from Photos with Python (and why AI can’t design it for you)

A complete Python pipeline for 3D point cloud labeling from phone photos using interactive painting, pinhole projection, and KD-tree fusion…

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3D Pipeline Architecture: A Founder’s Blueprint

3D Pipeline Architecture: A Founder’s Blueprint

It was a Tuesday when I got the call. A €40,000 project was completely stalled, burning cash every hour. The…

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