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Writing notes

Essays and notes on product, engineering, and building things, by Marko Koljancic.

No. 01 / EngineeringApril 15, 2026 / 9 min read

Solarxy, part one: a 3D asset viewer and visual debugger

An open-source, cross-platform 3D model viewer and visual debugger built in Rust and wgpu, and the story of why I built it. Part one of the Solarxy build log.

Solarxy showing a 3D model in a shaded pane beside its UV layout in a split viewport.