Editing Cornell box (section)

=== Hemi-Cube Form Factors ===
This simulation of the Cornell Box was carried out by [[Michael F. Cohen]] and Donald P. Greenberg for their 1985 paper ''The Hemi-Cube: A Radiosity Solution for Complex Environments'' presented at SIGGRAPH '85.<ref name="HemiCube">Michael F. Cohen, Donald P. Greenberg. ''[https://dl.acm.org/doi/10.1145/325165.325171 The Hemi-Cube: A Radiosity Solution for Complex Environments]''. SIGGRAPH 1985, Vol. 19, No. 3, pp. 31-40.</ref> The hemi-cube technique allowed [[Form factor (radiative transfer)|form factors]] to be calculated using scan conversion algorithms, which were supported by hardware at the time, and made it possible to calculate shadows from occluding objects inside the scene.

This version of the Cornell Box was the first to feature objects placed inside — a short block on the left side, a tall block on the right side, and a light source in the center of the 'ceiling'. This configuration matches the scene data<ref name="CornellBoxData"/> shared by Cornell University discussed in [[Cornell box#Scene data|Scene data (section)]]. This layout became a standard reference and was widely reproduced, but in many rendered versions of this scene, the arrangement of the blocks is often mirrored.
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