Scene Conversion
Iray provides tools to convert your existing mental ray® or Autodesk scenes into Iray. You can convert all Lights, Materials and Environments, or any combination of the three. You can even convert individual scene objects.
✱ Note: Only Autodesk or mental ray® scenes are currently supported.
When you switch your Renderer to Iray+ or Iray+ Interactive you will be given the opportunity to convert any non Iray+ materials or lighting in your scene.
Converting Multiple Objects
Iray Menu Bar ➤ Iray+ Scene Converter Or [Right Mouse Click] ➤ Iray+ Scene Converter
Conversion
- mental ray® Sun/Sky and Skylights: Converts lighting, including MR Sun and Sky (Daylight) to PhysSky. Incompatible lights will not convert. If you want the X, Y and Z position of the MR Sun to be converted with the scene, you will need to set it up using the 'Date, Time, and Location' controls within the modify panel. Positioning the MR Sun manually will mean its X, Y and Z positions are not converted
✱ Note: When converting a mental ray® Sun/Sky, the Sky object will remain in the scene after conversion. This will be ignored by the Iray+ renderer. The Iray PhysicalSky created in the conversion contains both sun and sky effects.
- Environment Settings: Recreates environments as Iray+ IBL environments and matches settings
- Materials: Recreates materials with Iray+ materials taking across any maps at the correct scale
- Remove Unused Materials: Removes all mental ray® materials from your material library after completing a conversion, and replaces them with the Iray+ materials. Leaving this unchecked will result in the material library displaying both the mental ray® and Iray+ materials together.
- Log to MaxScript Listener: Send completed conversion details to the MaxScript Listener window, where more details can be read
- Convert: Starts the conversion process. You will be given the opportunity to save your file as the conversion can't be undone.
Conversion Status
- Lists objects in your scene as well as their type, each column is sortable. Other columns include:
- Status: Indicates conversion status. Items that won't be converted will display Directly Supported by Iray or Not Supported etc. Before conversion, compatible items will have the status Ready to Convert, after conversion, the status will be Converted
- Details: Provides advice and details about the conversion status
- Select in Viewport: Objects selected in Conversion Status are also selected in the viewport. This is useful for quickly creating selection sets, deleting or taking other actions on multiple items
- View Documentation: Displays this page in your default browser.
✱ Note: After converting a scene you may need to adjust the scene's Exposure Value in Settings > Tone Mapping because your scene may appear overexposed.
Compatibility with Scene Conversion
Materials
| Type |
Supported |
Details |
| MR Arch & Design | ✔ | Converted to Iray+ Arch&Design |
| MR CarPaint | ✔ | Converted to Iray+ Metallic Paint |
| MR Subsurface Scattering Fast | ✔ | Converted to Iray+ Fast SSS |
| MR Subsurface Scattering Fast Skin | ✔ | Converted to Iray+ Skin |
| Autodesk Materials | ✔ | |
| Standard Materials | ✔ | Basic Parameters supported natively. Unsupported maps will not work. |
| Multi/sub-object | ✔ | Nested Multi/sub-object materials are not supported. |
| Autodesk Pro Materials | ✖ | |
| Blend | ✖ | |
| Matte/Shadow | ✖ | |
| Top/Bottom | ✖ | |
| Shell | ✖ | |
| Composite | ✖ | |
Maps
The commonly used maps are listed below. Assume that any map not listed is not supported.
| Type |
Supported |
Details |
| Dent Map | ✔ | |
| Noise Map | ✔ | |
| Autodesk Bitmap | ✔ | This is converted to a Standard Map |
| Autodesk Cutout | ✔ | |
| Bitmap | ✔ | Converts to Iray bitmap on-the-fly |
| Cellular | ✔ | This is baked and converted on-the-fly |
| Gradient | ✔ | This is baked and converted on-the-fly |
| Marble | ✔ | This is converted on-the-fly |
| Normal Bump | ✔ | Converts to Iray bitmap on-the-fly |
| Perlin Marble | ✔ | This is baked and converted on-the-fly |
| Composite | ✖ | |
| Color Correction | ✖ | |
| Falloff | ✖ | |
| RGB Multiply | ✖ | |
| RGB Tint | ✖ | |
| Smoke | ✖ | |
| Splat | ✖ | |
| Swirl | ✖ | |
| Tiles | ✖ | |
| Waves | ✖ | |
Lights
| Type |
Supported |
Details |
| MR Sun/Sky | ✔ | Not supported if sun position was set manually |
| Skylight | ✔ | Converted to IBL environment |
| MR Area Omni | ✖ | |
| MR Area Spot | ✖ | |
| MR Sky Portal | ✖ | |
| Target Spot | ✔ | Converted on-the-fly |
| Target Direct | ✔ | Converted on-the-fly |
| Omni | ✔ | Converted on-the-fly |
| Free Spot | ✔ | Converted on-the-fly |
| Free Direct | ✔ | Converted on-the-fly |
| Target Light | ✔ | Converted on-the-fly |
| Free Light | ✔ | Converted on-the-fly |
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