3ds Max settings (Environment tab) – When selected, Corona will use the environment color or map specified in the 3ds Max Environment and Effects window.
Single map – When selected, Corona will use the environment color or map slot next to this radio button.
Multiple maps (LightMix) – When selected, multiple environment maps will be used. They should be split into multiple LightSelect render elements.
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Enabling the "Multiple maps (LightMix)" option and clicking on the "2 maps" button opens a "Corona Multiple Environment Maps Setup" window, which lets you use two or more environment maps in your scene. To learn more, see: How to set up multiple environments at the Chaos Help Center.
Overrides
Direct visibility override – When enabled, the color or map next to this checkbox will be used as an override for the environment map visible directly from the camera.
Reflections override – When enabled, the color or map next to this checkbox will be used as an override for the environment map visible in reflections.
Refractions override – When enabled, the color or map next to this checkbox will be used as an override for the environment map visible in refractions.
Global volume material – When enabled, the material placed next to this checkbox will be used as the global volumetric medium for the scene. Useful for simulating fog or aerial perspective.
