what i learned on day 1 of a 3D reconstruction internship

Day 1 post, PreserveMy.World x TechRealm Internship 2026

I'm a CS student at FAST NUCES Islamabad. I've built multi-agent AI pipelines, written C++ without touching STL once, and spent a full semester writing a Mario clone in x86 Assembly (7,700 lines, no regrets). But 3D reconstruction? Never touched it before this week.

I joined PreserveMy.World x TechRealm on the AI-Based 3D Reconstruction track. PMW builds navigable 3D digital records of heritage sites from phone footage. My track is the AI pipeline that turns raw video into something you can actually walk through on a screen.

Day 1: figure out what photogrammetry actually is, write real code, don't just paraphrase a Wikipedia article.

the core problem