JL Mussi shows an easy way to export a model from Maya to Painter for texturing.
If you are a Maya artist who just getting started with Substance Painter, you should check out this quick guide by JL Mussi. Mussi shows an easy way to get Maya models out and into Substance Painter so that you can texture using painter’s PBR tools.
When you start using more than one tool or application, workflows become essential. You need to have a way to export models out, UV them, texture them, and then possibly bring them back into Maya for rendering with Arnold. To that last point have a look at Brent LeBlanc’s guide to texturing with substance painter and then bringing the model and shaders back to render with Arnold in Maya.