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KtoA 4.2.1.1 - Arnold for Katana

19 April 2023

KtoA 4.2.1.1 includes Arnold core 7.2.1.1.

Installation

  • Download the Arnold for Katana plugin
  • Follow these installation instructions

Katana 4.5 and 5.0 compatibility

Katana 4.5v3 and 5.0v3 introduced a change that affects the Arnold USD plugins support in Katana. This release of KtoA supports those Katana versions or newer within their release series. Katana 4.5v1, 4.5v2, 5.0v1, and 5.0v2 are not supported by this KtoA release.

Bug Fixes

  • KTOA-814 - Indexed string arbitrary data causes a warning
  • ARNOLD-13043 - DeepEXR and Cryptomatte use more memory than needed
  • ARNOLD-13128 - Node init and update happens twice when doing a negative AA progressive render
  • ARNOLD-13367 - Opacity mask texture performance scaling regression
  • ARNOLD-13397 - Crash report sent when Arnold is not used
  • ARNOLD-13446 - Crash with extremely small triangles near the origin
  • ARNOLD-13434 - [usd] Sublayer loading errors on Windows
  • ARNOLD-9497 - [GPU] coat_direct, coat_indirect, and other diffuse/translucent AOVs are incorrect
  • ARNOLD-13377 - [GPU] Output warning instead of error when unable to create child node of procedural
  • usd#1485 - MaterialX shader nodes should have "auto" colorspace by default
  • usd#1459 - Support shaders with multiple outputs
  • usd#1359 - Refresh the Arnold instancer when the prototype mesh points have changed
  • usd#1483 - Indexed normals with vertex interpolation are now converted properly
  • usd#1462 - Ensure shader scope doesn't appear twice in the hierarchy
  • usd#1477 - Fix the motion blur with interframe geometry samples in the render delegate
  • usd#1419 - Add a note in the README about the USD_ASSIGN_PROTOTYPES_DETERMINISTICALLY environment variable, which fixes the flickering instances in cryptomatte issue
  • usd#1426 - Skinned transforms are now correctly used on the skinned meshes

System Requirements

  • Windows 10 or later.

  • Linux with at least glibc 2.17 and libstdc++ 4.8.5 (gcc 4.8.5). This is equivalent to RHEL/CentOS 7.

  • CPUs need to support the SSE4.1 instruction set.

  • GPU rendering equires an NVIDIA GPU of the Ada, Ampere, Turing, Volta, Pascal, or Maxwell architecture. We recommend using the 525.89 or higher drivers on Linux and 528.49, or higher on Windows. See Arnold GPU for more information.

  • Katana Katana 4.0v1 or newer, Katana 4.5v3 or newer, Katana 5.0v3 or newer, or Katana 6.0v1 or newer.

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