Thea for Rhino integrated plugin takes full advantage of Thea Render functionality and allows you to create high-quality photorealistic renders within Robert McNeel & Associates Rhinoceros® 6. With advanced features such as interactive render, true physically-based materials, innovative material layering, IES & HDRI light support along with a versatile rendering system comprised of biased, unbiased and GPU engines, rendering within Rhino has become really powerful. Viewport Rendering:
Thea for Rhino can be used for interactive rendering inside Rhino Viewports. Select the desired Viewport and simply let Thea Render engines give you an immediate visualization of your scene.

Advanced Material Editor:
The advanced Thea material editor has been fully integrated into Rhino, bringing all the advanced and unique features of Thea materials. The user interface has been redesigned from scratch making the creation of complex materials an easy task.

Content Browser with Online Repository:
The Online Repository [link] can now be accessed directly from the Thea content browser. It is now just a single click to download an online material and add it to the material list. On top of that, it is also possible to load materials in the Advanced Material Editor using the Content Browser and make use of the Interactive Preview functionality that allows you to interactively preview materials before making the final decision.

Darkroom Refreshed:
Darkroom has been refreshed with new features and a new modular user interface. Batch rendering can be started from within Darkroom using Rhino’s Named Views allowing the user to define different render settings and termination criteria for each one.

Features:
Back face material support:
-The back face of any surface can have a different material and this makes it now possible to create advanced materials like labels, sheets of papers and tree leaves.

Enhanced Material Presets:
-Material presets have been enhanced with extra functionality that allows the creation of nearly every possible material. Plastic material has been enhanced with translucency, semi-transparent and coating options while the Metalling Paint preset, now supports Metallic Flakes too.

Faster Position Updates:
-Moving objects while rendering interactively is now times faster than the previous version allowing you to move, rotate and scale objects in the scene easily.

Stereoscopic Rendering:
-Stereoscopic image output exports two 360-degree images for both eyes, letting you see the model in 3D using simple red-cyan glasses or VR headset.

Batch Rendering:
-Batch Rendering makes it possible to bring all the Named Views straight into Thea Darkroom and render them one after the other. Also, custom properties can be defined per Named View.

New Tone Mapping Methods:
-Two new tone mapping operators have been added in Thea Render. Filmic allows the user to have complete control over Highlights and Shadows while Reinhard provides a robust way to automatically compress high dynamic range renders.

Additional Features:
-Geometry subdivision (on render time)
-Assign containers (medium)
-Native Rhino materials support
-Split frame functionality
-Custom light evaluation
-Clipping planes

Whats New:
Updates: official site does not provide any info about changes in this version.