- 1 x Maya
- 1 x MtoA
- 1 x Monitor calibrated to sRGB
- Linear textures
- In the Render Settings, set all the Arnold gamma correction settings to 1.0.
- Set your Render View > Display to 32-bit floating-point (HDR).
- Click Render View > Color Management, and in the viewColorManager Attribute Editor, set the Image Color Profile to Linear sRGB (that is, your input textures are in linear space).
- Render to EXR or some other linear floating point format.
hat tip: Fred