Indigo (which recently went commercial) have released version 2.0 of their renderer.
Ben Nolan wrote:
We've released Indigo 2.0 as a stable. We talked with the community and increased the size of the free-version renders, and reduced the size of the logo - to make it more useful for the free users. Our announcement for Indigo 2.0 is at:
We're really happy to see the new users come on board with Indigo (even though we went commercial) and I've personally been amazed at the quality of modelling that people are getting out of blender. Like these renders from seanser or wytraven.
From the announcement:
The Indigo graphical user interface (GUI) has been rewritten to improve power and ease of use. Interactive tone mapping, layer blending etc.. is now possible with the GUI. Major new Indigo features include motion blur, easy network rendering with a customised render node GUI, and full Unicode support. Sub-surface scattering has been sped up, and aperture diffraction (glare) has been improved.
The Indigo exporter plug-ins have also been greatly improved, and now come with easy-to-use installers. Indigo exporter plug-ins can also now read and write Indigo material files, allowing artists to make use of the Indigo material database (http://www.indigorenderer.com/materials/), a free online repository of high-quality Indigo materials.