Release Date

July 31, 2019

This release includes the beta version of Arnold GPU

Important information about Arnold GPU (beta)

Download and Installation

Arnold, KtoA, and other downloads are available here. Installation instructions come with KtoA, but can also be viewed here: Installation.


  • Arnold: 5.4.0
  • Katana: 3.0v1+, 3.1v1+
  • Platforms:
    • Linux: x86-64, RHEL 6+ or compatible glibc
    • Windows: 7+ on x86-64, with VC++ 2015 redistributable installed
  • GPU (beta): see here for detailed information. Required NVIDIA drivers:
    • Linux: 418.56 or higher

    • Windows: 419.77 or higher


  • Update to Arnold 5.4: Arnold 5.4 is now used, featuring various shader additions, performance enhancements and important bug fixes. See the release notes for more information. (#398)

  • MaterialX assign node: A node ArnoldMaterialXAssign and op are provided for assigning MaterialX looks, to complement the bake functionality already provided. (#384)

Incompatible Changes

  • Tracesets default behavior: When objects have no traceset assigned, they are not included in other inclusive tracesets. Procedurals are always themselves included so that their children can be checked. (#398)


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