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• You can assign, manipulate, and import entire shading networks while rendering in IPR mode through the viewport or "it"
• When applying a material, we create a Maya common material for OpenGL viewport viewing. The RenderMan materials plug into a RenderMan option on the shading group node. You can disable this in the preferences.
• In the initial release, we do not render a material swatch or Hypershade preview, you will get an icon. Instead we encourage you to use the VP 2.0 rendering by selecting RenderMan from the "Renderer" viewport panel menu. You may playblast to this window if scale is set to 1.0 in the Maya settings.
• Material overrides on instances is now straightforward as everything is treated as an instance in RenderMan now.
• OSL materials with appropriate metadata can auto-populate a UI, this removes the need for a separate .args file. Examples are the PxrLayer nodes.
• We don't support the color management options in Maya in the initial release
• Texture paths using environment variables in older scenes (such as $HOME) should be replaced with the new token system to correctly render.
• We don't support the material viewer in the initial release

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