Lentil is compiled against Arnold 7.1.1.0. Any earlier version will not work.
Option 1: Set the following environment variables, replacing $PATH_TO_LENTIL with the actual path on your machine.
ARNOLD_PLUGIN_PATH = $PATH_TO_LENTIL/bin
MTOA_TEMPLATES_PATH = $PATH_TO_LENTIL/ae
Option 2: It’s also possible to copy the files into your MtoA install. Copy the files like this:
Files in /bin go to $MTOA_LOCATION/shaders
Files in /ae go to $MTOA_LOCATION/scripts/mtoa/ui/ae
You need to replace the cryptomatte library that comes with the arnold install. The patched library can be found in /bin/cryptomatte.(dll/so/dylib).
The default cryptomatte library can be found in, for example, C:/Program Files/Autodesk/Arnold/maya2020/plugins, but this might depend on your operating system and configuration. It is best to do a simple search for "cryptomatte" within your arnold install directory.
Step 1 - Option 1: Set the following environment variables, replacing $PATH_TO_LENTIL with the actual path on your machine.
ARNOLD_PLUGIN_PATH = $PATH_TO_LENTIL/bin
Step 1 - Option 2: It’s also possible to copy the files into your HtoA install. Copy the files like this:
Files in /bin go to $HTOA_LOCATION/arnold/plugins
You need to replace the cryptomatte library that comes with the arnold install. The patched library can be found in /bin/cryptomatte.(dll/so/dylib).
The default cryptomatte library can be found in, for example, /htoa/htoa-6.1.1.0.rc1_r4a3d5ae_houdini-19.0.531.py3/htoa-6.1.1.0.rc1_r4a3d5ae_houdini-19.0.531.py3/scripts/plugins, but this might depend on your operating system and configuration. It is best to do a simple search for "cryptomatte" within your arnold install directory.
Files in /bin go to $C4D_INSTALL/plugins/C4DtoA/shaders
Files in /C4DtoA/res/strings_us go to $C4D_INSTALL/plugins/C4DtoA/res/strings_en-US/description
Files in /C4DtoA/description go to $C4D_INSTALL/plugins/C4DtoA/res/description
You need to replace the cryptomatte library that comes with the arnold install. The patched library can be found in /bin/cryptomatte.(dll/so/dylib).
The default cryptomatte library can be found in, for example, C:/Program Files/Maxon Cinema 4D R25/plugins/C4DtoA/arnold/plugins, but this might depend on your operating system and configuration. It is best to do a simple search for "cryptomatte" within your arnold install directory.
More information can be found here.
Files in /bin go to C:\ProgramData\Autodesk\ApplicationPlugins\MAXtoA_
No custom UI files have been made for 3dsmax yet. If there's a need for a better parameter layout than the automatic translation by maxtoa, please let us know. See this page for more information.