Arnold 5.3 offers artists a first taste of Arnold GPU with a public beta version, giving you the flexibility to switch seamlessly between CPU or GPU rendering, for a set number of features. From real-time look development to interactive lighting, Arnold GPU helps bring speed and power to user workflows, leading to shorter iterations cycles and reviews.
Other new features in Arnold 5.3 include:
- Major improvements to quality and performance for adaptive sampling, helping to reduce render times without jeopardizing final image quality
- Improved version of Randomwalk SSS mode for more realistic shading
- Enhanced usability for Standard Surface, giving users more control
- Improvements to the Operator framework, including a new Include operator and a more artist-friendly way to apply them
- Better sampling of Skydome lights, reducing direct illumination noise
- Updates to support for MaterialX, allowing users to save a shading network as a MaterialX look

Arnold 5.3 with Arnold GPU in public beta is now available for download for all supported plug-ins: Autodesk Maya, Autodesk 3ds Max, Houdini, Cinema 4D, and Katana.