The image below required a higher than normal number of Subdiv Iterations (9) to capture the fine detail from the generated displacement map.
Here is a tutorial that covers how to render a car model in an automotive studio environment using Arnold.
Pingo has created a 3D Jewellery Visualization course that uses Arnold for C4D, with over 5 hours of material in 20 lessons.
have announced the beta release of Cryptomatte for Arnold 5, as well as version 1.2.0-Beta of the Cryptomatte specification, and reference Nuke implementation.
Note that this is a beta release, both for AlShaders and Nuke.
Arnold 5: (AlShaders2): https://github.com/anderslanglands/alShaders2/releases
Nuke and Fusion: https://github.com/Psyop/Cryptomatte
Arnold 5 Cryptomatte
Cryptomatte for Arnold 5 is being released as part of AlShaders, as before, but is now a standalone node. Arnold 5.0.1 adds support for “AOV shaders”, which allow code to run on all materials in a scene, without manually connecting passthrough nodes. This improves the workflow in numerous ways. Using a central AOV shader node gives easy access to global Cryptomatte settings (on the one central Cryptomatte node). It is now also much easier for a studio to create a customized version of Cryptomatte, since the code does not need to be embedded in a surface shader. In addition to adopting the AOV shader methodology, we’ve added other features as well, such as sidecar manifests that work with deferred-loaded stand-ins, and “integer offsets” for modifying names.
Arnold 5 Documentation: Cryptomatte documentation, MtoA, MAXtoA, C4DtoA, HtoA.
Quixel have an impressive library of scanned assets available for rendering with Arnold. Below is a test render using one of their wood stump assets.