Here is a forum for NOX:

For quick familiarity and avoidance of questions here is a list of things NOX can or can't do.

Supported features:

• mutlithreaded
• 32/64 bit
• standalone ms windows application
• gi based on path tracing
• instancing
• motion blur
• materials
• multiple layers
• physical based micro-facet model
• transmission
• fake glass
• dispersion
• opacity
• emission
• ies photometric data
• subsurface scattering (sss)
• bump/normal mapping
• textures + simple processing
• local and online material library
• regions (only direct ligthing)
• camera
• physical exposure settings - iso, apeture, shutter
• physical based realistic dof or fake dof in post-process
• aperture shape settings
• realistic bokeh effects
• sunsky system
• sky portals
• environment mapping (spherical)
• blend layers
• post process
• exposure correction (ev)
• standard color correction: brightness, contrast, saturation, rgb, temperature
• curve (rgb or luminance)
• camera response functions
• vignette
• bloom
• glare
• fake dof
• chromatic aberrations
• grain
• load/save post settings
• 3dsmax plugin
• nox sunlight
• nox camera free/target
• nox material
• exporter
• renderer in another process
• blender script
• nox sunsky
• nox material
• nox camera
• exporter
• renderer in another process
• files compatibility
• typical image files (jpg,bmp,tiff,png,gif)
• exr, hdr image file
• scene as custom binary or xml file
• materials as xml file
• postproduction settings as xml file
• blend settings as xml file
• final post as xml file
• ies photometric data file
• autoupdate

Not supported features:

• displacement
• proxy