This page provides information on the Corona Converter, its settings, and usage.
The Corona Converter is installed with Corona by default and can be opened using:
- The dedicated Corona Toolbar icon.
- The quad menu after right-clicking in any viewport.
In order for the Corona Converter to convert scenes created with other renderers and 3rd party plugins, those render engines and plugins must be installed in the 3D application, so that they are recognized. They don't need their licenses activated.
If you are converting scenes from V-Ray to Corona, you need V-Ray version 3 or newer. Older versions are currently not supported.
Add prefix to converted material – Adds a prefix to name of all converted materials.
mr. Area Light/Lights to Corona Light(s) – Converts mr Area Omni Light and mr Area Spot Light to CoronaLight.
Bitmap(s) to CoronaBitmap(s) – Converts Bitmap texture maps to Corona Bitmaps.
Enable "Thin shell" if translucent – Enables Thin shell parameter of the converted material, if the original material was translucent. Physically based materials in Chaos Corona are only allowed to use translucency effects when describing objects with Thin Shell.
Switch to Chaos Corona – Switches active renderer of the current scene to Chaos Corona.
V-Ray specific options
Convert VrayHDRI(s) – Converts VRayHDRI(s) - texture maps to standard Bitmap texture maps.
Convert V-ray proxies – Converts V-Ray proxies to Corona proxies (opens a pop-up dialog with further options during the conversion).
V-Ray specific objects, lights, and materials are supported only if V-Ray renderer is installed in 3ds Max.
Conversion: Everything (materials, maps, lights) / Scene materials and maps only / Scene lights only / Materials of selected objects only / Selected material editor slot only / Selected material editor slot only / Show warnings / Convert CoronaLegacy MTL / - Selection modes convert materials and maps without breaking instancing, so be aware that other materials could be also affected.
Metalness – Autodetected, force non-metal, force metal.
Convert – Starts conversion.
Reset Compact Material Editor materials – Resets all Compact Material Editor materials to default CoronaPhysicalMTL(s).
Show statistics – Shows statistics about CoronaPhisicalMtl(s) in the scene.
Convert by class – Converts specific unsupported materials classes to default CoronaPhysicalMtl(s) (e.g. missing_mtl or Maxwell materials).
Selected objects' maps in viewport
Show – Workaround for displaying diffuse maps in the viewport.
Hide – Workaround for turning display of diffuse maps in the viewport off.
Disable CoronaRoundEdges maps Legacy behavior – Disables Legacy behavior of all CoronaRoundEdges maps.
Fix CoronaNormal "Incorrect gamma" warnings – If some CoronaNormal node displays Incorrect gamma warning, tries to fix it by switching its add gamma to input option on or off. Only works if the input texture's gamma is either 1.0 or 2.2.
Convert VRayDispacementMod(s) to CoronaDisplacementMod(s) – Converts VRayDispacementMod(s) to CoronaDisplacementMod(s).
Bitmap(s) - > CoronaBitmap(s) – Converts Bitmap texture maps to CoronaBitmap.
CoronaBitmap(s) - > Bitmap(s) – Converts CoronaBitmap(s) to Bitmap(s).
Corona Converter tried to keep as many of the original settings as possible in newly created nodes. For Refractive, Translucent, and Volumetric materials sometimes there will be more nodes than in the original material. Nevertheless, the Converted materials will look and render just fine.
Supported and Unsupported Items
|V-Ray Lights||VRayLight||Corona Light|
|VRayIES||Corona Light (with IES enabled)|
|VRayAmbientLight||Does not convert.|
|Standard / Other Lights||3ds Max Daylight System||Sunlight is converted to Corona Sun. Skylight is converted to <No Skylight>.|
|Native 3ds Max Lights (Omni, Target, Fre, etc)||Do not convert, but can be rendered with Corona.|
|V-Ray||V-Ray Proxy||Corona Proxy|
|V-Ray Displacement Modifier||Does not convert.|