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03 Feb 2023

MtoA 5.2.2.2 is a bugfix release using Arnold 7.1.4.2. For the full list of features and requirements, see the MtoA 5.2.2 release notes.

Installation

• Download the Arnold for Maya plugin
• Follow these installation instructions.

Maya Plugins Compatibility

MtoA 5.2.2.2 works with the following Maya plugins

• Bifrost Extension for Maya 2.4.0.0
• MayaUSD 0.18.0 (USD 21.11)

Bug Fixes

• MTOA-1243 - Ensure the CER window doesn't show up in batch renders
• MTOA-1247 - Disable autotx for swatches
• MTOA-1291 - PreRenderMEL triggered on referance or import of render settings
• MTOA-1238 - Mayapy 2022 crashes when you load MtoA on Linux
• MTOA-1263 - Viewport render icon stays active when loading a new scene
• ARNOLD-8417 - Memory leaks when using kick -turn
• ARNOLD-11020 - Quad light color not automatically updated in IPR
• ARNOLD-12083 - Remove unused -gpu_cache_dir kick flag
• ARNOLD-12646 - Motion blurred quad_light is not visible to camera until second node_update
• ARNOLD-12842 - Fix possible memory leak when assigning structurally equal array to a node
• ARNOLD-12845 - Crash report sent even when Arnold is not used
• ARNOLD-12863 - License incorrectly released when multiple renders are running and some have skip_license_check turned on
• ARNOLD-12872 - AutoTX regression with inverted view transforms
• ARNOLD-12876 - Crash with ginstanced points
• ARNOLD-12891 - Crash when imager is passed to deep driver
• ARNOLD-12895 - AutoTX keeps original file open after creating TX file
• ARNOLD-12905 - AiErrorReporting* python bindings are missing
• ARNOLD-12923 - Arnold crash reporting does not work in non-ascii directories
• ARNOLD-12928 - Crash if the instancer source node list contains null

System Requirements

• Maya 2020, 2022 or 2023
• Windows 10 or later, with the Visual Studio 2019 redistributable.
• Linux with at least glibc 2.17 and libstdc++ 4.8.5 (gcc 4.8.5). This is equivalent to RHEL/CentOS 7.
• macOS 10.13 or later.
• CPUs need to support the SSE4.1 instruction set. Apple Mac models with M series chip are supported under Rosetta 2 mode.
• GPU rendering works on Windows and Linux only and requires an NVIDIA GPU of the Ampere, Turing, Volta, Pascal, or Maxwell architecture. We recommend using the 495.46 or higher drivers on Linux and 511.09 (Quadro), 511.09 (GeForce), or higher on Windows. See Arnold GPU for more information.
• Optix™ denoiser requires an NVidia GPU with CUDA™ Compute Capability 5.0 and above.

The driver type must be set to DCH.

^{In the driver page, select "Windows Driver Type:" DCH}

The cache will also need to be re-populated after installing a new Arnold version, updating to a new NVIDIA driver , or changing the hardware configuration of GPUs on the system. More information can be found here .