Chaos support
Corona Standalone
Last updated 1 September 2026.
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CGeo (version 7)
CGeo is an extensible file format for storing mesh data. It can be used to implement proxies or to communicate data between applications that support the Corona renderer.
Overview
CONF file syntax
CONF files define render configuration. See Corona standalone input format description for the syntax conventions used in this document.
Overview
Corona ShadeContext implementation
Corona uses 2 shade contexts - one for hit into the scene background (environment), and other for all geometry hits. Their Class_IDs are:
Overview
Corona XML maps format
See Corona XML materials format for basic info on the format. Here we will only list specific map definitions, but they still need to be contained in the <mtlLib><mapDefinition>… structure as outlined in the main article.
Overview
Corona XML materials format
The file can contain multiple materials and maps definitions. The document should have this basic format:
Overview
General information
This page provides information on the Corona Standalone.
Overview
OBJ file syntax
OBJ files are the old, less efficient way to describe scene geometry - .cgeo is usually preferred. The OBJ format is based on the standard wavefront OBJ files.
Overview
XML Scene (.scn) format
SCN files are the main Corona scene descriptors. They include other files with geometry/materials/configuration, define camera, geometry, render elements, and more. The document root element must be of type “scene”. All element and attribute names are case-insensitive.
Overview