MAXScript Language Reference > 3ds Max Objects > RendererClass >

# iray_Renderer : RendererClass

    iray_Renderer - superclass: RendererClass; super-superclass:MAXWrapper - 25:25 - classID: #(1048411834, 348141227)

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The iray renderer is a unbiased path tracer designed to perform physically accurate lighting simulations using both the CPU and any available GPUs on the host system.

For advanced settings, see also the iray String Options topic.

Available in 3ds Max 2012 and higher.

Constructor:

    iray_Renderer ...
    mental_ray_iray_Renderer ...

EXAMPLE
     --Assign an iRay renderer class instance --to the current renderer:
    renderers.current = iRay_Renderer ()
    --> iRay_Renderer:iRay_Renderer

Properties:

## iRay Rollout

### "Rendering Duration Per Frame" Group Of Controls

    <iray_Renderer>.durationInSeconds Integer default: 60 -- integer

Get/set the time in seconds to run the simulation.

Valid value range is 1 to 1073741824, default is 60 seconds.

    <iray_Renderer>.durationMode Name default: #time -- enum

    durationMode enums: {#time|#iterations|#unlimited}

Get/set the state of the Duration Mode radio buttons.

When set to #time (default), the simulation will stop after the number of seconds specified by the .durationInSeconds property.

When set to #iterations , the simulation will perform the number of iterations specified by the .durationPasses property.

When set to #unlimited , the simulation will continue until stopped manually.

    <iray_Renderer>.durationPasses Integer default: 500 -- integer

Get/set the number of passes to iterate through when the .durationMode is set to #iterations

Valid value range is 1 to 1073741824, default is 500 iterations.

## Advanced Parameters Rollout

### Solver Methods

    <iray_Renderer>.architecturalSamplerEnabled     BooleanClass    default: false   --  boolean

NEW in 3ds Max 2014: Get/set the state of the "Architectural Sampler" checkbox.

    <iray_Renderer>.causticSamplerEnabled     BooleanClass    default: false   --  boolean

NEW in 3ds Max 2014: Get/set the state of the "Caustic Sampler" checkbox.

### "Trace/Bounce Limits" Group Of Controls

    <iray_Renderer>.lightBouncesLimited BooleanClass default: false -- boolean

Get/set the state of the radio buttons controlling the Trace/Bounce Limits.

When set to False (default), the light bounces will not be limited, producing a physically accurate lighting simulation.

When set to True, the light bounces will be limited to the threshold defined by the .lightBouncesMaximum property.

    <iray_Renderer>.lightBouncesMaximum Integer default: 4 -- integer

Get/set the maximum number of light bounces used when the .lightBouncesLimited property is set to True.

Valid value range is 2 to 1073741824, default is 4.

### "Image Filtering (Antialiasing)" Group Of Controls

    <iray_Renderer>.imageFilterType Name default: #gauss -- enum

    imageFilterType enums: {#box|#gauss|#triangle}

Get/set the image filter type.

    <iray_Renderer>.imageFilterWidth Float default: 3.0 -- float

Get/set the image filter width.

Valid value range is 0.0 to 8.0, default is 3.0.

### "Material Override" Group Of Controls

    <iray_Renderer>.overrideMaterialEnabled BooleanClass default: false -- boolean

Get/set the state of the Material Override > Enable option.

When set to true, all scene materials will be overridden with the material specified by the .overrideMaterial property.

When set to false (default), the existing scene materials will be used, regardless of the value of the .overrideMaterial property.

    <iray_Renderer>.overrideMaterial UndefinedClass default: undefined -- material

## Displacement Parameters

### "Displacement (Global Settings)" Group Of Controls

    <iray_Renderer>.displacementView BooleanClass default: true -- boolean

Get/set the state of the "View" option.

    <iray_Renderer>.displacementSmoothing BooleanClass default: true -- boolean

Get/set the state of the "Smoothing" option.

    <iray_Renderer>.displacementEdgeLength Float default: 2.0 -- float

Get/set the "Edge Length" property value.

Valid value range is 0.0 to 1e+006, default is 2.0

    <iray_Renderer>.displacementMaximum Float default: 20.0 -- float

Get/set the "Max.Displace" property value.

Valid value range is 0.0 to 1e+006, default is 20.0

    <iray_Renderer>.displacementSubdivisionLevel Integer default: 6 -- integer

Get/set the drop-down list state of the "Max.Subdiv." option.

Possible values are:

0 - 4

1 - 16

2 - 64

3 - 256

4 - 1K

5 - 4K

6 - 16K (default)

7 - 64K

## Motion Blur Rollout

### "Motion Blur" Group Of Controls

    <iray_Renderer>.motionBlurEnabled     BooleanClass    default: false   --  boolean

Get/set the state of the Motion Blur > "Enable" checkbox.

Available in 3ds Max 2013 and higher.

    <iray_Renderer>.blurAllObjectsEnabled     BooleanClass    default: true   --  boolean

Get/set the state of the "Blur All Objects" checkbox.

Available in 3ds Max 2013 and higher.

    <iray_Renderer>.shutterDurationInFrames     Float    default: 0.5   --  float

Get/set the "Shutter Duration (frames)" value.

Available in 3ds Max 2013 and higher.

    <iray_Renderer>.shutterOffsetInFrames     Float    default: -0.25   --  float

Get/set the "Shutter Offset (frames)" value.

Available in 3ds Max 2013 and higher.

    <iray_Renderer>.motionSegments     Integer    default: 1   --  integer

Get/set the "Motion Segments" value.

Available in 3ds Max 2013 and higher.

    <iray_Renderer>.iterationsPerMotionStep     Integer    default: 16   --  integer

Get/set the "Iterations Per Motion Step" value.

Available in 3ds Max 2013 and higher.

## Script-Only Properties

    <iray_Renderer>.hardwareReport String default:
    "//////////////////////////////////////////////////////////////////////////////
    ////////// iray Hardware Support
    //////////////////////////////////////////////////////////////////////////////
    +No supported hardware detected. Using CPUs only." -- string; read-only

    <iray_Renderer>.version String default:"2.1-, build 150473.8639 ra, 15 Oct 2011, nt-x86-vc9sp1" -- string; read-only

Contains the version string of the current iRay build.

The default value may vary depending on your version.

Read-only.

## iray_Renderer interfaces:

    Interface: IMtlRender_Compability_Renderer

Properties:

none

Methods:

none

Actions:

none

    Interface: mental_ray_iray_options

Properties:

The properties exposed by this interface appear as properties of the renderer and are documented in detail in the beginning of this topic.

    <iray_Renderer>.durationInSeconds : integer : Read|Write|Validated by Range: 1 to 1073741824

    <iray_Renderer>.durationPasses : integer : Read|Write|Validated by Range: 1 to 1073741824

    <iray_Renderer>.durationMode : enum : Read|Write
    durationMode enums: {#time|#iterations|#unlimited}

    <iray_Renderer>.displacementView : boolean : Read|Write

    <iray_Renderer>.displacementSmoothing : boolean : Read|Write

    <iray_Renderer>.displacementEdgeLength : float : Read|Write|Validated by Range: 0.0 to 1e+006

    <iray_Renderer>.displacementMaximum : float : Read|Write|Validated by Range: 0.0 to 1e+006

    <iray_Renderer>.displacementSubdivisionLevel : integer : Read|Write|Validated by Range: 0 to 7

    <iray_Renderer>.overrideMaterialEnabled : boolean : Read|Write

    <iray_Renderer>.overrideMaterial : material : Read|Write

    <iray_Renderer>.lightBouncesLimited : boolean : Read|Write

    <iray_Renderer>.lightBouncesMaximum : integer : Read|Write|Validated by Range: 2 to 1073741824

    <iray_Renderer>.imageFilterType : enum : Read|Write

    imageFilterType enums: {#box|#gauss|#triangle}

    <iray_Renderer>.imageFilterWidth : float : Read|Write|Validated by Range: 0.0 to 8.0

    <iray_Renderer>.motionBlurEnabled : boolean : Read|Write

    <iray_Renderer>.blurAllObjectsEnabled : boolean : Read|Write

    <iray_Renderer>.shutterDurationInFrames : float : Read|Write|Validated by Range: 1e-006 to 1e+008

    <iray_Renderer>.shutterOffsetInFrames : float : Read|Write|Validated by Range: -1e+008 to 1e+008

    <iray_Renderer>.motionSegments : integer : Read|Write|Validated by Range: 1 to 15

    <iray_Renderer>.iterationsPerMotionStep : integer : Read|Write|Validated by Range: 1 to 1024

Methods:

none

Actions:

none

    Interface: mental_ray_iray_diagnostics

Properties:

The properties exposed by this interface appear as properties of the renderer and are documented in detail in the beginning of this topic.

    <iray_Renderer>.hardwareReport : string : Read

    <iray_Renderer>.version : string : Read

Methods:

none

Actions:

none