Before you can use Arnold in CINEMA 4D (C4DtoA) you will need to download and install the C4DtoA plug-in and then configure CINEMA 4D to use it.

You need to install C4DtoA on TeamRender clients too.

Note that there is one installer for each supported operating system:

• Windows 64 bit.

• Mac OS X (64 bit 10.11 or later).