”PBRT 2: Creating and Working with Large Scenes” by Gustaf Waldemarson at Blender Conference 2026

Today, Blender is undeniably one of the best tools out there for a large swathe of graphics related tasks. However, some work can be done to make it even more useful when working with the complex scenes that are often used in graphics research.

During BCON24, I demonstrated how to create basic importers and exporters with the Python API using the PBRT format as a basis. In this talk, I will present various improvements to the importer that allows PBRT scenes to be rendered with Cycles at a comparable image quality, and by extension, leverage the existing Blender ecosystem to export these scenes to other systems via other formats, such as glTF.

Additionally, as some of these scenes contain numerous, or complex objects, techniques for working with them in a way that maintains user-interface responsiveness are highlighted.

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Learn more about Blender Conference 2026 at https://conference.blender.org/2026/

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