Scenes and Assets

Scenes and Assets

Most scenes are not stored in the GitHub repository. A few ship in data/scenes/; everything else is downloaded on demand from the public Stanford Digital Repository (SDR) the first time you ask for it — see Local rendering for how that download and caching works, and the iset3d-scene-sources skill in the ISET3D repository for the full API (ieWebGet, piSDRSceneNames, piDirGet, building a synthetic target).

Tutorials

Start here:

• t_piIntro_chess.m (.m) — download and render the chess set scene via piRecipeDefault.

Going deeper:

• t_piIntro_macbeth.m — render a MacBeth color checker and plot the illuminant SPD.
• t_piIntro_macbeth_zmap.m — the z-coordinate map, as distinct from the depth map.
• t_piSceneInstances.m — add multiple instances of an object, reusing one mesh with different transforms.

Manual run (marked % SkipFile — excluded from the automated tutorial smoke test, but still useful):

• t_piSceneRenderingParameters.m — scene and camera property calculations, including optional lens settings.

Scene Set Citations

If you use the scene sets bundled through the SDR in a publication, cite their original sources:

Pharr scenes — the PBRT v4 scene repository, manual at pbrt.org/users-guide-v4:

@book{pharr2023physically,
  title={Physically based rendering: From theory to implementation},
  author={Pharr, Matt and Jakob, Wenzel and Humphreys, Greg},
  year={2023},
  publisher={MIT Press}
}

Bitterli scenes:

@misc{resources16,
   Author = {Benedikt Bitterli},
   Year = {2016},
   Note = {https://benedikt-bitterli.me/resources/},
   Title = {Rendering resources}
}