You can now see visual representations
of mental ray for Maya shading nodes in swatch form in Maya. For
example, you can now view mental ray for Maya custom shaders, when
the appropriate renderer (mental ray for Maya renderer) is selected.
Note
In
mental ray for Maya, swatch rendering is supported for: material
shaders, procedural texture shaders, sample compositing shaders,
and data conversion shaders.
For
interactivity, mental ray shader swatches are rendered in low rendering
quality.
To
maintain maximum performance when IPR is running, swatches in Hypershade are
not updated.