Iray Feature List

Rendering

AI Denoising for fast high quality noise-free images
Utilizes all supported GPUs and CPUs within the machine, with user control of resources
Super-fast Iray Interactive ray tracing within 3ds Max's ActiveShade window provides immediate feedback on object transforms and lighting edits
Optimized sampling for accurate caustics and highly indirect lighting
Motion Blur using 3ds Max camera multi-pass
Simultaneous render element generation with negligible speed impact
Custom Light Path Expressions for tremendous flexibility in post production editing
Depth of Field quickly responds upon adjustment (using 3ds Max camera multi-pass)
Matte shadow and reflection support for compositing flexibility
Backplate image supported independent of lighting
Lighting simulation mode to evaluate the Lux/Foot-candles at any visible point
Iray Section Plane slices through entire max scene for interior visualization
Lens type for 360 panoramic rendering and stereo viewing with VR hardware

Interactive updates (in ActiveShade) upon adjusting scene materials
Physically based materials using an intuitive layering approach leveraging the NVIDIA Material Definition Language (MDL) for substantial flexibility
Extensive material flexibility, including subsurface scattering, thin film, gem, etc.
Work directly within 3ds Max material editing interfaces such as the Compact and Slate editors
MDL material export for building custom, shareable material libraries
MDL import and export for sharing materials between different Iray applications or MDL compliant renderers (e.g., mental ray)
Supports up to 4 UV mapping channels per material layer
Conversion of native Arch & Design materials and mental ray photometric lights and environments
Supports native 3ds Max Maps and custom MDL procedurals (always GPU accelerated)
Material measurements from supported devices
Complex layering parameters including Decals, Coating, and Surface
Extensive verified material library to confidently represent real-world results

Interactive updates (in ActiveShade) upon adjusting light parameters and position
Image based lighting for fast photographic environment lighting
Supports 3ds Max standard and photometric lights
New Iray photometric light type, IES profile support
Real-world units of lighting attributes for accurate simulation
Lighting from emissive (self illuminated) materials & geometry
Physical Sun and Sky System for lighting simulation based on date, time, and GPS location
No slow down from adding additional light sources
Irradiance lighting analysis mode for accurate light and heat simulation
Viewport preview of IBL for fast positioning
User enabled caustic sampling
Define custom Light Path Expressions (LPEs) as 3ds Max Render Elements

Continual feedback with progressive rendering of final results after scene adjustments
Effortless switching between fast ray tracing (Iray+ Interactive) and accurate path tracing (Iray+)
Interactive tone mapping for quickly achieving desired exposure, white balance, and contrast adjustments
Animation support for material and light parameters
MaxScript scripting support
Iray Server support for efficient, scalable offline rendering
Interactive Iray Server support for streaming from an external machine
Quadro VCA and DGX-1 support for remote interactive rendering with linear scalability
Intuitive controls for frame completion criteria and render optimizations
Simple scene conversion between mental ray® and Iray includes lights, materials and environments.

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