RRtool works by capturing MAX`s Rendered Frame Window (VFB) and placing it in region, drawn in viewport.
Besides RRtool has a build in functions to update (re-render) region based on user manipulations.
In general RRtool works almost like 'Quick Region' tool in XSI..RRtool works with folowing renderers:
- Scanline renderer
- Brazil renderer (tested with 1.52)
- mental ray renderer (tested with 3.2)
- Vray renderer (tested with 1.5 RC3) | 
