From: Soumik Ghosh (soumik2805_at_gmail.com)
Date: Tue Sep 08 2020 - 16:02:18 CDT

Hello,

I have been trying to use Tachyon in a script. The relevant portions are as
follows:
#-----
render Tachyon VMDscene.dat "/usr/bin/tachyon" -aasamples 12 %s -format
TARGA -o %s_rot0.tga
#-----
rotate {x} by 90
render Tachyon VMDscene.dat "/usr/bin/tachyon" -aasamples 12 %s -format
TARGA -o %s_rotX.tga
#-----
rotate {x} by -90
rotate {y} by 90
render Tachyon VMDscene.dat "/usr/bin/tachyon" -aasamples 12 %s -format
TARGA -o %s_rotY.tga
#-----
rotate {y} by -90
rotate {z} by 90
render Tachyon VMDscene.dat "/usr/bin/tachyon" -aasamples 12 %s -format
TARGA -o %s_rotZ.tga
#-----
rotate {z} by -90
rotate {x} by 45
rotate {y} by 45
rotate {z} by 45
render Tachyon VMDscene.dat "/usr/bin/tachyon" -aasamples 12 %s -format
TARGA -o %s_rotD.tga
#-----

It just gets stuck at some %completion and no matter how long i let it run,
it doesnt proceed. The snippet of the log is as follows:

Info) Executing post-render cmd '/usr/bin/tachyon -aasamples 12
VMDscene.dat -format TARGA -o VMDscene.dat_rotY.tga' ...
Tachyon Parallel/Multiprocessor Ray Tracer Version 0.99
Copyright 1994-2013, John E. Stone <john.stone_at_gmail.com>
------------------------------------------------------------
Creating MIP Map: xlevels: 7 ylevels: 7 zlevels: 7 levels: 1
Scene Parsing Time: 0.1806 seconds
Scene contains 26912 objects.
Preprocessing Time: 0.0233 seconds

Rendering Progress: 0% complete

Rendering Progress: 3% complete

Rendering Progress: 76% complete

Rendering Progress: 9% complete

Rendering Progress: 15% complete

Rendering Progress: 21% complete

Rendering Progress: 26% complete

Rendering Progress: 32% complete

Rendering Progress: 38% complete

Rendering Progress: 13% complete

Rendering Progress: 44% complete

Rendering Progress: 36% complete

Rendering Progress: 76% complete

Rendering Progress: 50% complete

Rendering Progress: 100% complete
  Ray Tracing Time: 0.1463 seconds

Rendering Progress: 42% complete

-----------------
Can anyone suggest a solution?

Thanking you,
Soumik