Rendering with Arnold
Overview
Arnold is a widely used commercial renderer developed by Solid Angle.
Ornatrix has built-in support for rendering hair using Arnold. No special steps are required, simply set the scene renderer to Arnold and all Ornatrix hair should be detected and rendered.
Supported Versions
Although Ornatrix is supported with all recent versions of MTOA, it is recommended that you download the latest version from SolidAngle website
Maya 2017 comes with MTOA 1.3.0, for example, however MTOA 1.3.1 fixes multiple important bugs and should be used instead.
Parameters
You can find various Arnold-specific attributes under the rendered hair or guides shape's Extra Attributes section inside the Attribute Editor.
For example, an important Minimum Pixel Width parameter can be found here.
Troubleshooting
If you experience any issues when rendering Ornatrix hair with Arnold make sure the following files are present in Ornatrix installation:- extensions\OrnatrixTranslator.dll (will be different extension on OSX and Linux)
- procedurals\OrnatrixProcedural.dll
Also make sure that the following line is present in Ornatrix.mod file, with 20XX being the current Maya version:
MTOA_EXTENSIONS_PATH := 20XX/extensions ORNATRIX_ARNOLD_PROCEDURAL_PATH := 20XX/procedurals/OrnatrixProcedural.dll
Arnold not working out of the box on OS X
Arnold render currently does not work out of the box on OS X!As a temporary fix please do the following:
- navigate to /Applications/Ephere/Plugins/Autodesk/Maya/Ornatrix/20XX/extensions/
- copy the OrnatrixTranslator.dylib and OrnatrixTranslator.py files to /Applications/solidangle/mtoa/20XX/extensions/