From: Mayne, Christopher G (
Date: Thu Oct 20 2016 - 10:51:00 CDT

I was told that my link wasn’t working; here’s the pertinent information:

  Depth of field is sampled when antialiasing samples are taken, so
the way to achieve a smoother depth of field bokeh effect when doing
batch ray tracing for movie rendering is to crank up the antialiasing
samples significantly, e.g.:
   render aasamples TachyonLOptiXInternal 256
   render aasamples TachyonInternal 256

On Oct 19, 2016, at 2:39 PM, Mayne, Christopher G <<>> wrote:


See the following topic for an answer:>

Christopher Mayne

On Oct 19, 2016, at 11:50 AM, Parker de Waal <<>> wrote:

Hello VMD,

When rendering with the new GPU accelerated TachyonOptiX in interactive mode, ambient occlusion (AO) has ample time to sample lighting to produce a clear, crisp image.

However when comparing the PPM file from the interactive render to a PPM file generated from the moviemaker TCL plugin (also using TachyonOptiX) the PPM file looks like the AO is not done sampling yet and looks rather coarse.

From this I have two questions:

1. How can I increase the rendering time for TachyonOptiX using the moviemaker TCL script to allow for AO sampling to finish?

2. How can I set --aasamples for the TachyonOptiX render? --aasamples seems to not work as an excepted flag.