From: John Stone (
Date: Wed Apr 06 2016 - 19:14:37 CDT

  The existing versions of the TachyonL-OptiX, POV-Ray, and a few
other renderers don't yet implement 3-D texture mapping.
For now you'll need to revert to using the
CPU-based TachyonInternal renderer for this scene, but it should work fine.

  John Stone

On Wed, Apr 06, 2016 at 07:36:21AM -0400, Kyle Mills wrote:
> Hello,
> I'm trying to render a volume slice as part of a scene using TachyonOptiX
> and the plane only ever renders as a single colour.A I have the coloring
> method set to "Volume" with the volumetric data selected.A I have the
> Render quality set to "High".A In the OpenGL display, all looks good, but
> when I run the interactive TachyonOptiX renderer, the volume slice plane
> is a single colour (POVRay suffers from the same issue).A Tachyon In
> Memory works, but takes a very long time (so long I was impatient and
> killed it) if I make the slice at all transparent.
> Any help would be appreciated!
> Kyle

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