This is a bugfix release. For the full list of features and requirements in Arnold 7.2.4, see the Arnold 7.2.4.0 release notes.
Bug Fixes
ARNOLD-9773 - Exorbitant rays/pixel reported for first % progress report
ARNOLD-13909 - Crash with extreme numbers of overlapping volumes
ARNOLD-14068 - Incorrect smart opaque when a shader is assigned to an instancer
ARNOLD-14087 - Crash when writing a scene without a valid render session
ARNOLD-14110 - GPU crash when attempting to read an EXR/TX file that isn't present
ARNOLD-14138 - Round up initial progress stat in log so it reports 1% and not 0%
ARNOLD-14180 - Profiler uses too much memory in very long running renders
usd#1678 - Add support for Arnold shaders with multiple outputs
usd#1711 - Fix duplicated Arnold user data introduced in 7.2.3.0
usd#1728 - Fix Cryptomatte compatibility with Nuke.
System Requirements
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.
x86-64 CPUs need to support the SSE4.1 instruction set. Apple Mac models with M series chip are natively supported.
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 525.89 or higher drivers on Linux and 528.49, or higher on Windows. See Arnold GPU for more information.
For GPU rendering, the cache also needs 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.