El único integrado es Yafray, aparte de su motor interno nativo, claro está. Además, de Pixie hay otros que dejo a continuación:
copio y pego:
Pixie
Site:
Pixie - Open source RenderMan.
Is a RenderMan like photorealistic renderer. It is being developed in the hope that it Will be useful for graphics research and for people who can not aford a commercial renderer. Pixie is an open source Project licensed under GNU public license. Most important features are: reyes style rendering, Motion Blur, Depth of Field and global illumination.
Kerkythea
Site:
http://www.softlab, ece, ntua, gr/~jpanta/graphics/Kerkythea/
Os: Windows, Linux.
64-bit available? : no.
Multi-thread available? : no.
Blender export script? : yes, downloadable from site, notes: xml scene configuration, stand-alone application.
sunflow
Site:
sunflow - Global illumination rendering system
Os: os independent.
64-bit available? : yes (if jdk is 64-bit)
Multi-thread available? : yes.
Blender export script? : yes, downloadable from site, notes: completely written in java, open source.
Indigo
Site:
http://www.indigorenderer.com/os: Windows.
64-bit available? : no.
Multi-thread available? : no.
Blender export script? : yes, downloadable from site, notes: xml scene format, unbiased raytracer, code available.
3delight
Site: [url]http://www.3delight.com/[/url]
Os: Windows, Linux, Mac.
64-bit available? : no.
Multi-thread available? : yes.
Blender export script? : in development on elysiun.
Notes: RenderMan-compliant, campatable with doctor queue and borg GUI, free for non-commercial use, extensive user manual.
metropolight
Site:
home of metropolight
Os: Windows.
64-bit available? : no.
Multi-thread available? : no.
Blender export script? : yes, on elysiun, notes: ASCII file format.